43.) BRASSICACEAE - Cabbage family - Pages

43.) BRASSICACEAE - Cabbage family

BRASSICACEAE - Cabbage family

ERYSIMUM L.

Erysimum cheiranthoides L. (Treacle-mustard) / General Rare A rare plant of cultivated and disturbed places, tips and spoil heaps. Formerly much more frequent. White (1912) gives Wormseed as an alternative name.

[Found near St. Aldam's Well, north of Pucklechurch in 2025 by J. Greenwood and David Hawkins - Nature in Avon 2025, p. 194.]

Erysimum virgatum Roth. (European Wallflower - GBIF, Twiggy Wallflower?, Twiggy Treacle-mustard?) 1842 General Extinct "A south Europe species stated by Babington in 1842 to have been at one time frequent about Bath." (White, 1912).
Erysimum repandum L. (var. repandum) (Spreading Treacle-mustard) 1928 General Extinct A former alien; occurred as a "Casual on rubbish in St. Philip's Marsh, Bristol; in plenty for several seasons...It continued on the same spot until 1894, when the ground was enclosed and built over. One plant near the Feeder Canal, 1909" (White, 1912); there again in 1914 by C.I. Sandwith; Bedminster in 1928; Ashton Gate in 1922; Avonmouth Docks in 1929 and 1938 (all by C.I. Sandwith). Last recorded at ST57 in 1950s by ? [BSBI record].
Erysimum cheiri (L.) Crantz (E. corinthium × ? = E. × cheiri (L.) Crantz) (Wallflower) / General Uncommon Widely scattered over the region on cliffs, rock faces, walls, dry banks and derelict ground. Long-established in some places such as the Avon Gorge where the bare rock is lit up from quite a distance by the conspicuous fiery balls of orange, red and yellow produced from March onwards. Also frequently occurring as a garden escape; mainly about Bristol. The naturalised plant is quite different to the more elaborate forms found in cultivation.

ARABIDOPSIS (DC.) Heynh.

Arabidopsis thaliana (L.) Heynh. (Thale Cress) / General Uncommon Widespread on and at the bases of walls, dry grassy banks, rocky outcrops, derelict ground (particularly on crumbling tarmac and gravel), railway lines and occasionally anthills; usually avoiding limestone. Notably concentrated around Bristol where it has adapted well to the urban environment.

CAMELINA Crantz

Camelina sativa (L.) Crantz (Gold-of-pleasure) General Very Rare Only recorded once in recent years - from an arable field margin at Ebbdown Farm, Marshfield in 2009 by J.P. Martin, as a relic of game cover. Formerly "Frequent with corn-siftings." (Sandwith, 1932).
Camelina alyssum (Mill.) Thell. (ssp. alyssum) (Gold-of-pleasure - GBIF, Flora of Northern Ireland) 1937 General Extinct A native of continental Europe and West Asia; recorded at Ashton Gate in 1937 by ? [BMAG].
Camelina microcarpa Andrz. ex DC. (Lesser Gold-of-pleasure) 1984 General Extinct A former alien. First recorded "at St. Philip's, Bristol, 1902 to 1908. On a rubbish-tip near St. Anne's, Brislington, 1905; C. Wall" (White, 1912 [as C. sylvestris]); Baptist Mills in 1916 by M. Cobbe; Bedminster in 1922 by C.I. Sandwith; Avonmouth Docks in 1928 and 1929 by C.I. Sandwith; Ashton Gate in 1939 by ? [BMAG]; Avonmouth Docks in 1961 by ? [BMAG]; and last seen at Weston-super-Mare? in 1985 by ? [BSBI record].

NESLIA Desv.

Neslia paniculata (L.) Desv. (Ball Mustard) 1932 General Very Rare Has only been found recently on bare ground that was created after the removal of a spoil heap on Observatory Hill, Clifton in 2024 by R.J. Higgins. Formerly a "common Continental weed which appears among colonies of corn-introduced plants from the East. Casual at St. Philip's, Bristol, in varying number from 1903 to 1908. On mill-refuse at Portishead, 1905, Miss Peck; and in 1906" (White, 1912); at Ashton Gate in 1917 by ? [BMAG]; Avonmouth Docks in 1930 by ? [BMAG]; and there again in 1957 by ? [BMAG]. "Frequent on Corn-siftings and in chicken-runs" (Sandwith, 1932 [as Vogelia paniculata]).

[2024 record in Nature in Avon 2025, p. 194.]

ssp. paniculata General Extinct Presumably most historic records refer to this.
ssp. thracica (Velen.) Bornm. General Extinct Was recorded at ST56 in pre-1930s by ? [BSBI record].

CAPSELLA Medik.

Capsella bursa-pastoris (L.) Medik. (ssp. bursa-pastoris) (Shepherd's-purse) / General Very Common Very common and ubiquitous in almost any disturbed situation. Extremely variable and a number of segregates exist but are yet to be worked out in the Bristol region though there are two standouts which D. Peters has found to be common around Bristol - C. druceana and C. trevirorum. The former is a robust plant with dark grey-green foliage, nearly entire leaves, leafy stems and large straight-sided capsules (measuring about 9-11 x 6-7mm) with a deep notch and style not exceeding it, and are held more or less patent on long pedicels. The latter is a smaller plant with paler foliage, deeply pinnate leaf rosettes more or less appressed to the ground, stems not leafy and smaller slightly convex-sided capsules (measuring about 7-9 x 4-5mm) with a shallower notch and style more or less equaling it. So called because the seeds and capsules look like coins in a purse.

[To be continued...]

Capsella rubella Reut. (Pink Shepherd's-purse) General Very Rare Recorded for the first time in our region at Bath in 2010s by ? [BSBI record]. It is probably overlooked. It differs from the widely variable C. bursa-pastoris collective most notably in its petals and sepals being red-tinged and capsules with concave sides, forming a gradually tapered base.

TURRITIS L.

Turritis glabra L. (Tower Mustard) - [as Arabis glabra on DB] General Very Rare "An alien, with no claim to be considered a Bristol plant. Withering in 1796..., gives St. Vincent's Rocks and the quarries above Bath as stations; the latter on Mr. Swayne's authority. There is a specimen, apparently this, in Herb. Perrin, from 'Upper Easton, Bristol;' probably a casual." (White, 1912 [as Arabis perfoliata]). It was recorded at Tynings, Tyntesfield Estate in 2011 by S. Rowlands.

[Is the 2011 record reliable?]

BARBAREA W.T. Aiton

Barbarea vulgaris W.T. Aiton (Winter-cress) / General Frequent A frequent species of disturbed and often wet places such as roadsides, flood plains, river banks, ditches, field margins and hedgebanks. Winter-cress is a variable plant and a number of varieties have been named: var. transiens "A large patch on a field border by the Wellsway, three miles out of Bath. This attracted my attention in the spring of 1910 by the slightly darker yellow of its flowers, and the peculiarly long linear lobes of the upper leaves which gave the plant a very distinct appearance. I went again later for a supply of fruit, and then saw that the pods were precisely those of type vulgaris both in beak and direction." (White, 1912). This was also recorded on a "Field border, Tyndall's Park, Bristol, W.E.C., 1924-5, 287. On the same page is mentioned a proliferous form of B. vulgaris growing by the R. Frome near Iron Acton." (Riddelsdell, 1948). Var. arcuata "A plant with spreading erect-patent pods, and so differing widely from the type, was gathered many years ago in the marsh by Stapleton Bridge." (White, 1912). Another - subvar. brachycarpa is mentioned by Riddelsdell (1948) from "Pucklechurch to Mangotsfield, Roper, B.N.S., 1923" and was also recorded at Baptist Mills in 1928 by C.I. Sandwith (as B. arcuata var. brachycarpa) but they are rarely recognised today. White (1912) and Riddelsdell (1948) give Yellow Rocket as an alternative name.

[see Journ. Bot. 1918]

Barbarea stricta Andrz. (Small-flowered Winter-cress) General Extinct "A single specimen, much like B. stricta...and possibly it, occurred as a casual near Abbotsleigh. It was sent to me by Mr. J. H. Fryer in 1903." (White, 1912). Otherwise only recorded at ST57 in 1950s by [BSBI record]; and at Slade Wood, Barrow Gurney in 1994 by P. Quinn.
Barbarea intermedia Boreau (Medium-flowered Winter-cress) / General Scarce A scattered introduction; found sporadically in disturbed places such as roadsides, cultivated ground, field margins, docks and on the banks of rivers and streams.
Barbarea verna (Mill.) Asch. (American Winter-cress) / General A widely scattered introduction of disturbed and cultivated places; usually close to habitation. It has notably increased since the turn of the century.

RORIPPA Scop.

Rorippa islandica (Oeder ex Gunnerus) Borbás (ssp. islandica) (Northern Yellow-cress) Wetland Very Rare This native was recorded for the first time in the Bristol region at Chew Valley Lake in 2003 by P.R. Green when 48 plants were found on bare soil. It was later discovered at two different sites at Blagdon in 2016 by R.J. Higgins.
Rorippa palustris (L.) Besser (Marsh Yellow-cress) /- Wetland Scarce Scattered over the region in damp muddy places besides ponds and ditches; most notably concentrated around Chew Valley and Blagdon Lakes. Sometimes found away from its usual habitat. For instance it grows in several places around the floating harbour, including in the water-filled rails outside the M Shed. Another such example was of a small population found on kerbsides in the heart of Westbury-on-Trym in 2024 by D. Peters.
Rorippa sylvestris (L.) Besser (Creeping Yellow-cress) Wetland Uncommon Scattered over the region on muddy river banks and margins of reservoirs, especially so at Blagdon and Chew Valley Lakes. Also sometimes found as an introduction in nurseries and derelict ground.
Rorippa amphibia (L.) Besser (Great Yellow-cress) Wetland Very Rare Very rare along the banks of the River Avon between Keynsham and the regions border where its population fluctuates from year to year; sparsely recorded elsewhere.
Rorippa austriaca (Crantz) Besser (Austrian Yellow-cress) / General Scarce A widespread introduction along roadsides and industrial areas, spreading vegetatively to form large patches. First recorded on an abandoned rubbish tip at Lawrence Weston in 1984 by I.F. Gravestock.

NASTURTIUM W.T. Aiton

Nasturtium officinale W.T. Aiton (Rorippa nasturtium-aquaticum (L.) Hayek) (Water-cress) / Wetland Uncommon Locally common in wet boggy places such as ponds, streams, ditches and flushes.
Nasturtium officinale x N. microphyllum = N. x sterile (Airy Shaw) Oefelein (Rorippa nasturtium-aquaticum x R. microphylla = R. x sterilis Airy Shaw) (Hybrid Water-cress) 1981 Wetland Very Rare Only recorded recently at Kenn Moor in 2000s by ? and at Walton-in-Gordano in 2010s by ? [BSBI records]. First recorded on the edge of Siston Common in 1954 by C.I. Sandwith. It is surely overlooked.
Nasturtium microphyllum (Boenn.) Rchb. (Rorippa microphylla (Boenn.) Hyl. ex Á. & D. Löve) (Narrow-fruited Water-cress) - Wetland Scarce Much less common than Water-cress but found in much the same places and probably overlooked.

ARMORACIA P. Gaertn., B. Mey. & Scherb.

Armoracia rusticana P. Gaertn., B. Mey. & Scherb. (Horse-radish) / General Frequent Frequently established as a relic of cultivation; found in rough fields, on roadsides, railway banks, flood plains, around allotments and along water courses.

CARDAMINE L.

Cardamine bulbifera (L.) Crantz (Coralroot) Woodland Very Rare Not native in our area. Well-established in woodland in the Bath area where it was first recorded at Smallcombe Wood in 1977 by R.D. Randall. It also occurs on the other side of the river around Batheaston, in wooded areas adjoining Fosse Lane, around Bannerdown Common, where it was first found in 1984 by D.E. Green.
Cardamine amara L. (ssp. amara) (Large Bitter-cress) Wetland Very Rare A new native addition to our region; occurring besides streams and flushes. Not included in the Flora of the Bristol Region (2000) despite being first recorded at Langridge in 1994 by ?. It has since been found at Winscombe, North Somerset in 1999 by ?; Batheaston in 2000 by ?; Freshford, BANES in 2008 by ?; Weston-super-Mare in 2010 by ?; and Victoria Park, Bath in 2018 by ? [also on BSBI].

[Some of these records might be mistakes.]

Cardamine pratensis L. (ssp. pratensis) (Cuckooflower) / Wetland Frequent Well-distributed and locally common in damp grassland, pastures, road verges, wet woodland, marshes, springs, flushes and besides watercourses. A variable species. Typically pink but sometimes white and occasionally plants with double flowers are produced. Though "our common and widely distributed plant, with lilac flowers and three pairs of stalked cordate leaflets, is not the true Linnean Cardamine pratensis...; but...C. palustris...The true plant has five to eight pairs of sessile leaflets, and the flowers are usually white. As seen by me in the Upper Engadine this latter has certainly a very different facies with which I have met with nothing to correspond in this district." (White, 1912). Otherwise known as Lady's Smock.
Cardamine pratensis x C. flexuosa = C. x fringsii F. Wirtg. (Cuckooflower x Wavy Bitter-cress) Wetland Very Rare Recorded in an area of damp woodland at Folly Farm in 2000 by R.J. Higgins and D. Lawrence. It should be expected to occur elsewhere.

[Also a BSBI 1950s record possibly in our area, just north of Falfield.]

Cardamine impatiens L. (Narrow-leaved Bitter-cress) - Woodland Very Rare A very rare plant of damp open spots in ancient woodland; only making a regular appearance in Leigh Woods, mainly along Nightingale Valley. Elsewhere very sporadic though formerly more widespread. As White (1912) puts it... "Local, and curiously uncertain in its appearance. Abundant in one year at a locality, it may then be entirely absent the next, or for several years afterwards". It appears to have a very long and persistent seed-bank and may be revived in areas where it's been lost, if careful management is reinstated. The first British record was made by Johnson (1633) "Sium minus impatiens...I found it about Bath and other parts of this Kingdome" and Merrett (1667) "In Rils and ditchbanks about Bath". White (1912) gives Impatient-podded Lady's Smock as an alternative name.
Cardamine flexuosa With. (Wavy Bitter-cress) / Wetland Very Common Common and evenly distributed in both natural and urban environments but preferring damp shady places such as woodland, besides watercourses, verges, disturbed and cultivated places, gardens, pavements at the bases of walls and kerbsides. This species is often far more abundant than Hairy Bitter-cress in clay districts and the two are often confused. Wavy Bitter-cress differs most memorably in the presence of 6 as oppose to 4 (sometimes 5) stamens and its wavy or zig-zag stem. It is also usually a more robust plant and a brighter shade of green. Also sometimes known as Wood Bittercress.
Cardamine hirsuta L. (Hairy Bitter-cress) / General Very Common Very Common in dry, sparsely vegetated situations such as pavements, walls, banks, rocky outcrops, and disturbed and cultivated ground. White (1912) gives Land-cress as an alternative name.
Cardamine corymbosa Hook. f. (New Zealand Bitter-cress) General Very Rare A very rare introduction; brought in via the horticultural trade, often found at garden centres where it gets distributed far and wide. So far only reported from the south of the region where it was first recorded at Kenn, North Somerset in 1990s by ? [BSBI record]. Since found at Cadbury Garden Centre in 2003 by I.P. Green (seen here again in 2020s by ? [BSBI record]); Burrington in 2006 by ?; in planters on London Road, Bath in 2016 by R.D. Randall; Blagdon in 2010s by ?; Winford in 2010s by ?; Paulton in 2010s by ?; and Midsomer Norton in 2020s by ? [BSBI records].

[Maybe only mention first record.]

LEPIDIUM L.

Lepidium sativum L. (Garden Cress) - General Very Rare A very rare casual; grown as a salad plant and also occurs as a birdseed alien. Most recently recorded at Cotham Bristol in 2016 by R.J. Higgins and at ST67 in 2010s by ? [BSBI record].
Lepidium campestre (L.) W.T. Aiton (Field Pepperwort) /- General Scarce Scattered over the region in disturbed and cultivated places such as arable fields on light soils, rough open grassland, roadsides, rutted tracks and gateways. Appears to have declined, likely due to the loss of nutrient-poor scruffy grassland to nutrient enrichment, modern farming practices and encroaching scrub.
Lepidium heterophyllum Benth. ssp. smithii Hook. (ssp. heterophyllum) (Smith's Pepperwort) Grassland Very Rare A very rare plant of dry grassy banks, upland pastures, roadsides and anthills; almost confined to the distribution of Old Red Sandstone and the Coal Measures. Only recorded a handful of times in recent years: Stanton Wick in 2004 by ?; Rowberrow in 2000s by ?; Backwell in 2010s by ?; Pucklechurch in 2010s by ?; and Worle in 2020s by ? [BSBI records].
Lepidium ramosissimum A. Nelson (Branched Pepperwort) - [Sandwith, 1932] General Extinct A native of North America; historically recorded at St. Philip's Marsh in 1916 by C.I. Sandwith; there again in 1919 by G.C. Druce; and on Waste ground at Shirehampton in 1919 by C.I. Sandwith and determined by O.E. Schulz.
Lepidium virginicum L. (ssp. virginicum) (Least Pepperwort) 1940 General Very Rare A rare birdseed alien; native to North America. Recently recorded on Gloucester Road, Bristol in 2019 by R.J. Higgins; Bath in 2021 by R.D. Randall [BRLSI]; Wrington in 2020s by ?; ST57X in 2020s by ? [BSBI record]; and several times around Bristol by D. Peters: one plant on a kerbside on Springfield Avenue, Ashley Down in 2024; two plants on block paving on Bromley Road, Ashley Down and another on Gloucester Road in 2025.
Lepidium densiflorum Schrad. (Apetalous Pepperwort - Stace) - [Sandwith, 1932] General Extinct A native of North America; historically recorded a number of times (all except for the first by C.I. Sandwith): St. Philip's Marsh in 1916 by M. Cobbe and G.C. Druce (as L. neglectum); at Eastville in 1919 and determined by O.E. Schulz; Ashton Gate in 1919 (as f. microcarpum); Portishead Dock in 1921 (as L. neglectum); Bristol in 1923 and determined by A. Thellung; St. Anne's, Brislington in 1927; Avonmouth Docks in 1925 and subsequently; and Bristol, B.E.C., 1928, p. 726 (Riddelsdell, 1948). L. neglectum was separated at the time but they are now considered to be the same.
Lepidium bonariense L. (Argentine Pepperwort) 1922 General Extinct A native of South America; historically recorded at St. Philip's Marsh in 1916 by C.I. Sandwith and G.C. Druce; St. Anne's, Brislington in 1917 by C.I. Sandwith; St. Philip's Marsh, B.E.C., 1919, p. 641 (Riddelsdell, 1948); and Bedminster in 1922 by C.I. Sandwith [BMAG].
Lepidium ruderale L. (Narrow-leaved Pepperwort) General Rare A rare casual of tips, docks and roadsides; formerly common in such places. First recorded from St. Vincents Rocks in 1726 by Dillenius.
Lepidium perfoliatum L. (Perfoliate Pepperwort) 1932 General Extinct Formerly "Frequent as a grain alien at Bristol, Shirehampton, Avonmouth and Portishead." (Sandwith, 1932). "An alien from Eastern Europe derived from imported grain, occurs from time to time. Sparingly on city refuse at St. Philip's, Bristol; July, 1902 and again in 1909. With other aliens near Twerton, Aug. 1903; Miss Peck. Several plants in Portishead Station yard; 1906" (White, 1912); Ashton Gate in 1917 by ?, 1918 by ? and 1939 by C.I. Sandwith; Avonmouth Docks in 1927 by ? [BMAG]. Last recorded at ST57 in 1960s by ? [BSBI record].
Lepidium latifolium L. (Dittander) Wetland Very Rare A nationally scarce species of upper saltmarsh and along the banks of brackish watercourses; concentrated around the Severn Estuary but most records locally are of casual occurrence and usually as an introduction. It was formerly widely cultivated in gardens to make a source likened to Horse Radish and the past practice of raising marshland with city rubbish is the probable source of some records. Recently recorded at Avonmouth in 2007 by ?; found growing in shallow water at the edge of Blagdon lake in 2008 during a BNS meeting; by a road verge just outside Oldbury-on-Severn in 2010 by ?; there again in 2011 by ? and most recently in 2020s by ? [BSBI record]; Bath in 2020s by ?; Swainswick, BANES in 2020s by ?; and Tadwick, BANES in 2020s by ? [BSBI records].
Lepidium graminifolium L. (Tall Pepperwort) - [Sandwith, 1932] General Extinct A native of southern Europe; historically recorded at St. Philip's Marsh in 1916 by M. Cobbe; Avonmouth Docks in 1925 and subsequently by C.I. Sandwith [BMAG]. Last recorded at ST57 in 1960s by ? [BSBI record].
Lepidium draba L. (Hoary Cress) / General A well-established introduction of roadsides, railway sidings, disturbed ground, docks and besides rivers and streams. It being particularly frequent around Weston-super-Mare and Bristol. "It holds its ground tenaciously, and spreads along railways and by roadsides with increasing frequency" (White, 1912). First recorded locally near Bristol in 1928 by W. Christy in Herb. Watson. (White, 1912).
ssp. draba General The nominate plant, with the same range and distribution as the species.
ssp. chalepense (L.) Thell. (L. chalepense L.) General Extinct Only recorded at Royal Portbury Dock in 1991 by C. & M.A.R. Kitchen and confirmed by T.C.G. Rich. It differs from ssp. draba in its brighter green foliage and fruit which is usually longer than wide (not as wide as long) with a cuneate to rounded rather than truncate to cordate base, and smooth surface (as opposed to reticulately ridged). It might be overlooked.

[Also a BSBI record at ST65 which might be within the region - check!]

Lepidium coronopus (L.) Al-Shehbaz (Coronopus squamatus (Forssk.) Asch.) (Swine-cress) / General Frequent Evenly distributed throughout the region though not as frequent as it used to be. Found in disturbed and cultivated places, along rutted tracks, trampled paths, farm yards, field entrances, roadsides and derelict ground.
Lepidium didymum L. (Coronopus didymus (L.) Sm.) (Lesser Swine-cress) / General Common A frequent plant; found in much the same places as Swine-cress though now more common in many places and particularly thriving in the urban environment along streets, on derelict ground, spoil heaps and field entrances.

LUNARIA L.

Lunaria annua L. (ssp. annua) (Honesty) / General Uncommon Widely grown in gardens and frequently found naturalised on roadsides, railway banks, derelict ground and tips. Typically purple but occasionally white forms are found.
Lunaria rediviva L. (Perennial Honesty) General Very Rare A very rare garden escape. First recorded at ST57 in 1930s by ? [BSBI record]; then at Clevedon, West End in 2005 by J. Cant; and recently a plant was found self-seeded at the base of a raised bed with no sign of its source at Grow Wilder, Frenchay, Bristol in 2025 by D. Peters.

ALYSSUM L.

Alyssum alyssoides (L.) L. (Small Alison) 1898 General Extinct Only recorded once in recent years - at Sand Bay in 2005 by E.J. McDonnell. Historical records include: "Field on the Uphill Road, Weston-super-Mare; Id. Fl. Weston (1856). Sandy field at Weston-super-Mare, 1886; Mrs. Gregory. A number of plants in a clover field on Lansdown, 1898." (White, 1912). "Plentiful on a newly metalled accomodation road below Lawrence Weston, 1915; in still larger quantity the year following...Miss Roper." (White in Journ. Bot., 1918). Sandwith (1932) says it persisted for several years and Riddelsdell (1948) sates it continued until 1934.
Alyssum hirsutum M. Bieb. (Hairy Alison?) 1897 General Extinct Recorded in 1897 according to the Flora of the Bristol Region (2000).

[Cannot locate record.]

Alyssum simplex Rudolphi (Field Alison, Simple Alison?, Unbranched Alison?) 1907 General Extinct Recorded in 1907 according to the Flora of the Bristol Region (2000).

[Cannot locate record.]

Alyssum montanum L. (Mountain Alison) General Extinct A plant was found self-seeded on crumbling tarmac amongst accumulated leaf litter at the base of railings on Church Road, Westbury-on-Trym in 2022 by D. Peters. It probably escaped from a nearby planter from a previous years planting and it disappeared soon after.

AURINIA Desv.

Aurinia saxatilis (L.) Desv. (ssp. saxatilis) (Golden Alison) - [as Alyssum saxatile on DB] General Very Rare A rare garden escape, occasionally becoming established on walls. First recorded at ST67 in 1990s by ?; at Southmead, Henleaze in 2002 by R. Bland; Wickwar in 2006 by ?; Blagdon in 2013 by M. Webster; Several plants on an old stone wall on Trym Road, Westbury-on-Trym in 2022 by D. Peters; a single clump at the bottom of a hedge on Henbury Road, Bristol in 2022 by D. Peters; Thornbury in 2020s by ?; Bath in 2020s by ? [BSBI records].

BERTEROA DC.

Berteroa incana (L.) DC. (Hoary Alison) 1915 General Extinct A former casual "Introduced with foreign grain and not established anywhere. On an old colliery waste-heap near Kingswood, Bristol, 1882 to 1885. Wapping Wharf, Bristol Harbour, 1911; Miss Roper. At Portishead Dock, 1905; Miss Peck. Two plants on a railway bank at Congresbury, 1890. Two on Worle Hill, 1906; Mrs. Foord-Kelcey. Weston-super-Mare; Mrs. Gregory, 1890." (White, 1912). St. Philip's Marsh in 1913 by C.I. Sandwith; Filton Estate in 1913 by I.M. Roper; railway bank by Brislington Station in 1915 by H.S. Thompson; Avonmouth Docks in 1931 and 1934 by C.I. Sandwith [BMAG].

DESCURAINIA Webb & Berthel.

Descurainia pinnata (Walter) Britton (ssp. pinnata) (Tansy-mustard) 1922 General Extinct A native of North America; recorded at Bedminster in 1922 by C.I. Sandwith and determined by A. Thellung (as Sisymbrium multifidum). This appears to be a first and only record for the British Isles.
Descurainia sophia (L.) Webb ex Prantl (ssp. sophia) (Flixweed) General Very Rare Formerly "Rather common on rubbish tips at Bristol. Avonmouth and Portishead." (Sandwith, 1932). First recorded in the Bristol region "Near Bristol" by T.H.K. Thwaites c.1840 (Riddelsdell, 1948); "Frequent about Worle in 1889; Mrs. Gregory. Sandy fields near Weston-super-Mare; St. Brody. Casual at Twerton, 1902; S. T. Dunn. Several plants in Portishead Station-yard, 1906 to 1911...Casual on waste ground, St. Philip's, Bristol; two plants in 1901, and one in 1902. Several in 1907. Three in 1911." (White, 1912 [as Sisymbrium sophia]); Avonmouth Docks in 1928 by ? [BMAG]; there again in 1953 by ?; again in 1958 by ?; in 1984 and 1985 by A.L. Grenfell. Last recorded at Gordano Service Station, Easton-in-Gordano (5 plants on edge of car park) in 2003 by I.P. Green.

[Check BSBI for further records]

HORNUNGIA Rchb.

Hornungia petraea (L.) Rchb. (Hutchinsia) /- General Very Rare Very rare in a few localities of open rocky areas on both sides of the Avon Gorge. Formerly occurred at Uphill. It has been lost from some sites.

ARABIS L.

Arabis caucasica Willd. ex Schltdl. (Garden Arabis) - General Very Rare Long established at St. Vincent's Rocks. Records of Arabis alpina (Alpine Rock-cress) are believed to have been mistakes for this species: "Near the White House, one and a half miles from Bristol going to Kingswood, 1773; Herb. Banks. And from the same spot, 1837; Herb. Watson." (White, 1912). "Mr. Druce informs me that he finds the specimen in Herb. H. C. Watson to be labeled 'Whitehall' not 'White House' as written by Banks. This makes the locality clearer, Whitehall being a district of East Bristol. Mr. Druce thinks the plant gathered was probably A. albida." (White in Journ. Bot., 1918). There is a specimen in London Natural History Museum which is presumably the same locality, recorded by Hurlock [find out more!].

6 records. 1st is Clifton Green, Mr I., Maxwell, Mrs D., Millman, Mrs P. 1998.

Arabis hirsuta (L.) Scop. (ssp. hirsuta) (Hairy Rock-cress) / General Scarce Scattered and locally frequent in limestone districts in old quarries, cliffs, rocky pastures and open scrub. Occasionally found on old walls.
Arabis scabra All. (Bristol Rock-cress) / General Very Rare A locally famous plant and one of the highlights of the Avon Gorge where it grows in rock crevices and on stabilised scree slopes in small populations on both sides of the Gorge. Numbers fluctuate from year to year but it has shown a general decline over the years.
Arabis procurrens Waldst. & Kit. var. procurrens (Running Rock-cress) General Very Rare Found as a garden escape at the base of a wall on Thornleigh Road, Bishopston in 2025 by D. Peters.

AUBRIETA Adans.

Aubrieta deltoidea (L.) DC. (Aubretia) / General Uncommon Purposely planted on stone walls and becoming established on them. Though scarcely proliferating via seed, they are sometimes found self-seed at their bases and onto other nearby walls.

Purposely planted on stone walls and becoming established on them and sometimes found self-seeded at their bases and onto other nearby walls.

DRABELLA (DC.) Fourr.

Drabella muralis (L.) Fourr. (Draba muralis L.) (Wall Whitlowgrass) General Very Rare A plant strictly of limestone rocks, walls and old quarries. Recorded only recently from Hawksbury Upton [first recorded in the area on a "Wall near Hawkesbury Church" by I.W. Evans (Riddelsdell, 1948)]; on rockery borders at Royal Victoria Park Botanic Gardens, Bath; and at Little Solsbury Hill, Swainswick [first recorded here in 1923 by C.I. Sandwith]. Historically occurred in a number of other places; predominantly in the south-east of the region. Earliest local mention is from a "Quarry in Morgrove Paddock, between Henbury and Lawrence Weston" in 1834 by S.F. Powell (White, 1912).

DRABA L.

Draba aizoides L. (ssp. aizoides) (Yellow Whitlowgrass) 1912 General Extinct A native of the Gower peninsula; occurred as an "Alien; on an old wall at Swainswick, Bath, for many years; Dr. Harper. No doubt planted." (White, 1912).

EROPHILA DC.

Erophila majuscula Jord. (Draba majuscula (Jord.) Hayek & Wibiral) (Hairy Whitlowgrass) General Very Rare Recorded at Awkley Hill, South Gloucestershire in 2008 by C. & M.A.R. Kitchen and a single plant was recorded on a rock outcrop at Purn Hill, North Somerset in 2008 by R.S. Cropper. It is probably overlooked and can be recognised by its shorter petioles (less than half as long as the blade), densely grey-hairy appearance, its less deeply bifid petals (to less than half way), and diagnostically its smaller seeds (measuring 0.3-0.5 as opposed to 0.5-0.8 mm).

[Also a pre-1930 BSBI record from ST45 which might be in our region - check.]

Erophila verna (L.) DC. (Draba verna L.) (Common Whitlowgrass) / General Frequent Frequent on sparsely vegetated barren ground with thin soils such as rocky outcrops, old quarries, wall-tops, banks, scuffed bare patches in limestone grassland, sand dunes, pavements, cobbles, gravel, crumbling tarmac, car parks and around urban street trees, city docks, railway sidings and derelict ground. Very variable in appearance and as with Shepherd's-purse (though not to the same extent), a number of segregates can be found. A particularly robust, hairy plant with very narrowly elliptic fruit was found around the bases of recently planted ornamental trees on a grassy bank on Muller Road, Bristol in 2023 and another very beautiful form with dark markings on the petioles running onto the leaf blades was found at Bathurst Basin, Bristol in 2025 by D. Peters.
var. verna General Frequent The more common though still very variable plant with fruit which is distinctly longer than wide. Same range and distribution as the species.
var. praecox (Steven) Diklić (Draba praecox Steven) General Scarce The scarcer plant with broadly elliptic to orbicular fruit. "There is an abundance of small specimens on the Downs; Penpole Point; Cadbury Camp...Much finer plants are to be found on rocks and walls about Worle Hill; Uphill; Woodspring; Banwell; Chewton Mendip...;Farrington Gurney...The broad rounded pods of this species well distinguish it from D. verna."(White, 1912 [as D. brachycarpa]).
Erophila glabrescens Jord. (Draba glabrescens (Jord.) Hayek & Wibiral) (Glabrous Whitlowgrass) /- General Rare A rare though probably overlooked species; thinly scattered over the region in the same habitats as E. verna - with which it differs in its petioles being significantly longer than the leaf blades (as long as at most in E. verna), petals which are less deeply bifid (to less than half way) and its overall more glabrous appearance (beware - many E. verna are glabrous before reaching maturity).

CARRICHTERA DC.

Carrichtera annua (L.) DC. (Cress Rocket) General Extinct A native of the Mediterranean; recorded at Avonmouth Docks in 1961 by ? [BMAG] and at Kings Weston in 2013 by Jeff Davey & Dave [iRecord].

[2013 record needs checking - highly unlikely.]

CONRINGIA Heist. ex Fabr.

Conringia orientalis (L.) Dumort. (Hare's-ear Mustard) 1932 General Extinct A native of the eastern Mediterranean; formerly "Quite frequent, especially on corn-siftings." (Sandwith, 1932). "It comes up with some frequency on cultivated and waste ground, and is often derived from grain-siftings." (White, 1912). First recorded by an "Old Mill at Hanham Weir, 1885; D. Fry" (White, 1912) and last seen at Avonmouth Docks in 1954 by H.J.M. Bowen.
Conringia austriaca (Jacq.) Sweet. (Southern Hare's-ear Mustard) - Glos. Fl. General Extinct A native of South East Europe; recorded at St. Philip's Marsh in 1916 by M. Cobbe.

DIPLOTAXIS DC.

Diplotaxis tenuifolia (L.) DC. (Perennial Wall-rocket) / General Uncommon Locally frequent on roadsides, old walls, brownfield sites, railway sidings and city docks; particularly around Bristol. It is also grown as a salad plant 'Wild Rocket' and sometimes escapes. First recorded locally and nationally by Hudson (1778) "Brassica muralis. Eruca sylvestris major vulgatior foetens. Wall Cabbage or Wild Rocket. Habitat in muris antiquis; circa...Bristol frequens". White (1912) gives the name Fine-leaved Wall Mustard. An entire-leaved plant 'var. integrifolia' was found at Avonmouth Docks with the typical plant in 1929 by C.I. Sandwith.
Diplotaxis muralis (L.) DC. (ssp. muralis) (Annual Wall-rocket) / General Uncommon Widespread and particularly concentrated around Bristol and Weston-super-Mare where it grows in disturbed places along roadsides and particularly at the bases of walls, though seemingly never actually on them! White (1912) gives the name Sand Mustard - referring to its preference for being by the coast. Typically annual but short-lived perennial plants were historically referred to as var. babingtonii and var. caulescens.
Diplotaxis viminea (L.) DC. (Vineyard Wall-rocket) - [Sandwith, 1932] General Extinct A native of the Mediterranean; recorded at Baptist Mills, Bristol in 1916 by M. Cobbe.
Diplotaxis catholica (L.) DC. (Catholic Wall-rocket?, Catholica Diplotaxis, Catholica False Peanut - SELINA WAMUCII) - [Sandwith, 1932] General Extinct A native of the western Mediterranean; recorded in a chicken-run on Wee Lane [now Glenfrome Road] in 1922 by C.I. Sandwith and determined by A. Thellung - thought to be a first and only record for the British Isles.
Diplotaxis tenuisiliqua Delile (ssp. tenuisiliqua) (Narrow-podded Wall-rocket - name translated) Plant Biodiversity of South-Western Morocco General Extinct A native of North Africa; recorded at Baptist Mills, Bristol in 1927 by C.I. Sandwith and at Gloucester Road Railway Sidings in 2003 by M. Evans.

[Modern record probably a data entry error for the similar sounding D. tenuifolia - check. Does Martin Evans have a middle name? Apparently there's another M. Evans.]

Diplotaxis erucoides (L.) DC. (White Wall-rocket) 1919 / General Very Rare A very rare casual. Recently recorded at Castle Park in 2014 by J. Mortin and in 2022 by D. Peters (a single plant appeared again in 2025); at ST57R in 2010s by ? [BSBI record]; Victoria Park, Bristol in 2019 by A. Morss et all.; and on a verge underneath a footbridge crossing Newfoundland Way, opposite Riverside Park, Bristol in 2025 by S. Waycott. First recorded at Bedminster in 1919 by M. Cobbe.

[Shaun Waycott's record was emailed to me on 30.03.25, 'On the verge almost under the footbridge' at ST59877393.]

EUCLIDIUM W.T. Aiton

Euclidium syriacum (L.) W.T. Aiton (Syrian Mustard) - Glos. Fl. General A native of South East Europe and Central Asia; recorded at Avonmouth Docks in 1938 by ? and at Ashton Gate in 1940 by ? [BMAG].

BRASSICA L.

Brassica oleracea L. (Cabbage) - General Very Rare Commonly grown as a crop on small scale in gardens and allotments in all of its varieties and sometimes escapes. Now rarely grown as an arable crop in our area. The following records are probably all referable to var. capitata: Oxhouse Lane, Lower Failand in 1932 by S.B. North; Tyning, Timsbury, Bath in 2003 by M. Bailey; Dunkerton, North Somerset in 2011 by AWT Living Landscapes, Jubilee Stone Wood, Backwell in 2016 by I. Chambers; and in a garden at Bishopston, Bristol in 2020 by R.J. Higgins.
var. oleracea (Wild Cabbage) Coasts Extinct The native plant of coasts; historically recorded at "'Steep Holmes'; J. C. Collins MS. in New Bot. Guide. Steep Holm, 1887; T. B. Flower...I saw what I thought was an oleracea seedling on Severn Beach, Glouc. in 1901, and two in 1902; but all disappeared before flowering." (White, 1912). More recent records, except for the last, are all inland and are probably mistakes for var. capitata: Saltford in 1984 by A. Dyke; St. Philip's, Bristol in 1985 by A.S. Reed; East Twerton, Bath in 1990 by R.D. Randall; Worlebury in 1992 by R.D. Randall.
var. capitata L. (Cabbage) - General Extinct Probably the most commonly grown Brassica in gardens and allotments and can proliferate if allowed to go to seed. Records mentioned at the species level and also the more recent records of var. oleracea probably belong here.
var. viridis L. (Kale) General Very Rare Recorded twice from Bristol in 2023 by D. Peters - a number of plants on crumbling concrete in a front garden on Ralph Road, Ashley Down; and found to be well-established on the remnant corner exposure of Redcliffe Caves and on the harbourside opposite, along Phoenix Wharf. In both cases, the cultivar 'Red Russian'.
Brassica napus L. (Rape) / General Frequent Widely grown as a crop plant and frequently escapes. See subspecies for details.
ssp. oleifera (DC.) Metzg. (Oil-seed Rape) / General Frequent One of the core crop plants; responsible for turning the landscape bright yellow in spring. A frequent birdseed alien and escapee from fields on roadsides and at the bases of street trees - where they have been deposited by Wood Pigeons. Also escaping from lorries during transit and on tractors tire treads when moving from field to field and spreading further via vehicles slipstreams.
ssp. rapifera Metzg. (Swede) General Extinct [on DB as B. napus var. napobrassica] Rarely grown on crop scale in our region. Formerly "Occasional, e.g. Avonmouth Docks, 1931" (Sandwith, 1932 [as B. rutabaga]) [BMAG].
Brassica rapa L. (Turnip) General Uncommon Widespread in cultivated and disturbed places and besides watercourses. See subspecies for details.
ssp. campestris (L.) A.R. Clapham (Wild Turnip) Wetland Scarce The wild plant; scattered over the region besides main rivers and occasionally as a casual elsewhere on disturbed ground. It appears to have declined.
ssp. oleifera (DC.) Metzg. (Turnip-rape) General Very Rare A very rare birdseed alien. Recorded at ST47 in 1990s by ?; ST36 in 1990s by ? [BSBI records] and recently a single plant was found at Bathurst Basin, Bristol in 2024 by D. Peters.
ssp. rapa (Turnip) General Extinct The cultivated plant. No recent records. "With us this form is almost confined to waste ground near buildings where rubbish and manurial refuse are sometimes deposited. Such spots are frequent on the outskirts of Bristol, as it often becomes necessary to raise the level of marsh-lands by tipping in all kinds of waste material, - some of it highly nitrogenous and seed-laden. We have good examples of this made ground at Avonmouth, Portishead and in St. Philip's Marsh." (White, 1912 [as B. rapa var. brigsii]).
Brassica tournefortii Gouan (Coincya tournefortii (Gouan) Alcaraz, T.E. Díaz, Rivas Mart. & Sánchez-Gómez) (Pale Cabbage) 1949 General Extinct A native of the Mediterranean; recorded at St. Philip's Marsh in 1919 by M. Cobbe; in 1949 according to the Flora of the Bristol Region (2000); and at ST57 in 1950s by ? [BSBI record].
Brassica juncea (L.) Czern. (Brassica rapa × Mutarda nigra = X Brassarda juncea (L.) Su Liu & Z.H. Feng) (Chinese Mustard) / General Rare A rare casual found on tips, sewage works, roadwork sites and as a birdseed alien. Also widely cultivated (usually as the purple-leaved cultivar 'Red Giant') and occasionally escapes. First recorded at Bedminster in 1922 by C.I. Sandwith.
Brassica elongata Ehrh. (Long-stalked Rape) 1929 General Extinct A native of South East Europe. Formerly a rare casual. See subspecies for details.
ssp. elongata General Extinct "Alien. On an old colliery waste heap at 'Holly Gess' between Kingswood and Hanham 1881 to 1891. A native of Asia Minor, probably introduced with grain." (White, 1912).
ssp. integrifolia (Boiss.) Breistr. General Extinct Recorded at Bedminster in 1918 by M. Cobbe; Avonmouth Docks, 1927-32 by C.I. Sandwith [BMAG] and Portishead Docks in 1929 by C.I. Sandwith.
Brassica nigra (L.) W.D.J. Koch (Mutarda nigra (L.) Bernh.) (Black Mustard) / Wetland Frequent Locally frequent along watercourses, flood plains, field margins, roadsides and other disturbed places; particularly along the River Avon and the coastal lowlands.

SINAPIS L.

Sinapis arvensis L. (Mutarda arvensis (L.) D.A. German) (Charlock) / General Common A common species of freshly disturbed places including arable fields, roadsides, tips and track-sides. It often appears as if by magic after major soil disturbance, even when there was no presence beforehand.
Sinapis alba L. (White Mustard) General Rare A rare and sporadic casual of disturbed and cultivated places, tips, roadsides, beneath bird tables and also planted as pheasant cover.
ssp. alba General Rare The nominate plant with single pinnate leaves, the terminal lobe being noticeably larger than the rest and with hairy fruits. The majority of records belong here.
ssp. dissecta (Lag.) Bonnier - [Sandwith, 1932 (as Brassica dissecta), Glos. Fl. (as Sinapis dissecta)] General Extinct With 2-pinnate leaves, the terminal lobe being more or less the same size as the rest, and with fruits glabrous or only slightly hairy. Recorded from a rubbish-tip at Horfield in 1915 by I.M. Roper and St. Philip's in 1919 by M. Cobbe (Sandwith, 1932 [as Brassica dissecta]).

ERUCA Mill.

Eruca vesicaria (L.) Cav. ssp. sativa (Mill.) Thell. (E. sativa Mill.) (Garden Rocket) 1978 - General Very Rare A very rare casual; most recently recorded at Clevedon in 2014 by C.M. Lovatt; Castle Park, Bristol in 2017 by J. Mortin; Egerton Road, Bishopston, Bristol in 2019 by an iNaturalist recorder; Severn Beach in 2010s by ?; Avonmouth in 2010s by ?; ST57S in 2010s by ?; and ST75U in 2010s by ? [BSBI records].

[2019 record is correct.]

ERUCASTRUM (DC.) C. Presl

Erucastrum gallicum (Willd.) O.E. Schulz (Hairy Rocket) General Extinct A native of Continental Europe; formerly frequent at Avonmouth Docks where it was last recorded in 1985 by A.L. Grenfell. Also recorded at Stonemasons Yard, Cumberland Road in 1936 by H.S. Thompson.
Erucastrum nasturtiifolium (Poiret) O. E. Schulz (ssp. nasturtiifolium) (Watercress-leaved Rocket) - [Sandwith, 1932 (as Brassica Erucastrum)] General Extinct A native of South West Europe; recorded at Baptist Mills in 1925 by C.I. Sandwith and at ST57 pre-1930s by ? [BSBI record].

HIRSCHFELDIA Moench

Hirschfeldia incana (L.) Lagr.-Foss. (ssp. incana) (Hoary Mustard) / General Frequent Well-established on industrial ground, derelict sites and roadsides. First recorded in our region at St. Philip's Marsh in 1916 by M. Cobbe and at Avonmouth Docks in 1923 by C.I. Sandwith and remained rare until the turn of the century. It has since undergone huge expansion and is now very frequent in many areas around Bristol.

COINCYA Rouy

Coincya monensis (L.) Greuter & Burdet ssp. cheiranthos (Vill.) Aedo, Leadlay & Muñoz Garm. (Wallflower Cabbage) General Extinct A native of West Europe; first recorded from a railway bank, Ashley Hill in 1928 by C.I. Sandwith; then at St Andrews Road Station, Bristol in 1988 by R.J. Higgins and D. Lawrence (still there in 1992); Avonmouth from 1988-1992 by R.J. Higgins; and last seen at Yatton, growing on the old railway line in 2003 by I.P. Green.

CAKILE Mill.

Cakile maritima Scop. ssp. maritima (Sea Rocket) - Coasts Very Rare Restricted to sand dunes between Uphill and Sand Point with sporadic casual occurrences elsewhere. Historically also recorded "on the Severn shore below New Passage" in 1910 by J.H. Priestley (White, 1912). Plants with nearly entire leaves have traditionally been referred to as var. or ssp. integrifolia but they are not the same as the true plant which is endemic to Morocco and the Canary Isles. "Good examples of the variety - such as it is, hardly worth distinguishing - grow...along the shore nearer Weston-super-Mare." (White, 1912).

[Combine records of ssp. integrifolia and check inland records - two are from Robert Cropper.]

MYAGRUM L.

Myagrum perfoliatum L. (Mitre Cress) General Extinct A native of the Mediterranean; "Casual at St. Philip's, 1904" (White, 1912); there again in 1916 by M. Cobbe; St Anne's in 1922 by C.I. Sandwith; Bedminster in 1922 by C.I. Sandwith; Shirehampton railway-sidings in 1924 by C.I. Sandwith; and Avonmouth Docks in 1928 by C.I. Sandwith, 1938 by ? and in 1954 by ? [BMAG].

RAPISTRUM Crantz

Rapistrum rugosum (L.) Bergeret ssp. linnaeanum (Coss.) Rouy & Foucaud (Bastard Cabbage) / General Rare A rare casual of disturbed places and city docks; formerly a grain alien but now mostly introduced with birdseed.
Rapistrum perenne (L.) All. (Steppe Cabbage) 1923 General Extinct A native of Central and eastern Europe; first recorded at "Twerton-on-Avon, 1897; S. T. Dunn...Casual at St. Philip's Marsh, Bristol, 1902" (White, 1912); there again in 1924 by C.I. Sandwith; St Anne's, Brislington in 1923 by C.I. Sandwith; and Avonmouth Docks in 1933 by ? [BMAG].

CRAMBE L.

Crambe maritima L. (Sea-kale) 1950 Coasts Extinct Recorded at ST36 in 1950 by ? [BSBI record] and more recently at Bleadon Level in 2001 by Wessex Water but unconfirmed and very unlikely.

[2001 record needs checking.]

ERUCARIA Gaertn.

Erucaria hispanica (L.) Druce (Spanish Pink Mustard) - [Sandwith, 1932 (as E. aleppica), Glos. Fl.] General Extinct A native of eastern Mediterranean; recorded at Shirehampton in 2012 by C.I. Sandwith (as E. aleppica); Avonmouth Docks in 1935 by ? and 1951 by ? [BMAG].

RAPHANUS L.

Raphanus raphanistrum L. (Radish) / General Frequent A species of disturbed and cultivated places. Frequent throughout the region. See subspecies for details.
ssp. raphanistrum (Wild Radish) General Frequent The nominante plant with the same range and distribution as the species. Both white and yellow-flowered plants are common.
ssp. maritimus (Sm.) Thell. (Sea Radish) / Coasts Scarce Locally common around coasts; particularly conspicuous at Sand Bay.
ssp. landra (Moretti ex DC.) Bonnier & Layens (Mediterranean Radish) - [Sandwith, 1932 (as L. landra)] General Very Rare Recorded at Avonmouth Docks in 1926 by C.I. Sandwith and recently a single presumably birdsown plant was found at the side of a track at Three Brooks Nature Reserve, Bradley Stoke in 2024 by D. Peters. It was revisited the following year where several new rosettes were found around the base of the original plant.
Raphanus sativus L. (R. raphanistrum L. ssp. sativus (L.) Schmalh.) (Garden Radish) General Very Rare A very rare introduction. Recently recorded at ST67J in 2010s by ?; at ST57S in 2010s by ?; and ST66V in 2020s by ? [BSBI records].

CHORISPORA R. Br. ex DC.

Chorispora tenella (Pall.) DC. (Bean-podded Mustard) - [Sandwith, 1932 (as Chorispermum tenellum)] General Extinct A native of South Russia and the Orient; recorded at Avonmouth Docks in 1929 and 1931 by C.I. Sandwith (as Chorispermum tenellum) [BMAG]. Otherwise known as Purple Mustard, Blue Mustard, Musk Mustard and Crossflower.

SISYMBRIUM L.

Sisymbrium irio L. (London-rocket) 1930 General Extinct A native of Continental Europe. Recorded at St. Philip's Marsh in 1904 when "it was mistaken for S. columnae [S. orientale]" (White, 1918); there again in 1922 by C.I. Sandwith; Portishead Dock in 1909 by I.M. Roper; Bedminster in 1922 and 1930 by C.I. Sandwith [BMAG]; and at Avonmouth Docks in 1958 by ? [BMAG].
Sisymbrium loeselii L. (False London-rocket) General Extinct A native of Continental Europe; recorded at Brislington in 1916 by M. Cobbe; St. Philip's Marsh in 1922 by C.I. Sandwith; Avonmouth Docks in 1928 by ?; 1932 by ? [BMAG]; and lastly in 1985 by A.L. Grenfell.
Sisymbrium septulatum DC. (Seven-Lobed Hedge Mustard - Selina Wamucii, Large-flowered Rocket, Partitioned Rocket - Flora of Israel and adjacent areas) General Extinct A native of the Middle East; recorded at Avonmouth Docks in 1954 by ? and 1964 by ? [BMAG].
Sisymbrium volgense M. Bieb. ex E. Fourn. (Russian Mustard) General Extinct A native of Russia; first recorded "On town-refuse, St. Philip's, Bristol, 1896...C. Bucknall. A large patch of it there 1907-9" (White, 1912 [as S. hispanicum]); there again in 1916 by G.C. Druce; Avonmouth Docks in 1927 by C.I. Sandwith; 1938 by ?; 1947 by ? [BMAG]; and lastly in 1960s by ? [BSBI record].
Sisymbrium altissimum L. (Tall Rocket) General Very Rare A native of Continental Europe; only recorded twice in recent years: at ST57W in 2010s by ? and at ST57S in 2010s by ? [BSBI records]. Formerly a frequent alien. First recorded in our region "On the filled-in areas of St. Philip's Marsh, Bristol; where I first noticed a few plants in 1887." (White, 1912 [as S. pannonicum]).
Sisymbrium orientale L. (Eastern Rocket) / General Scarce A native of Continental Europe; scattered and sometimes locally frequent on pavements and at the bases of walls, particularly around Avonmouth and Central Bristol. First recorded locally at "Portishead railway-sidings, 1896" (White, 1912 [as S. columnae]).
Sisymbrium erysimoides Desf. (French Rocket) General Extinct A native of the western Mediterranean; recorded at St. Philip's Marsh in 1916 by G.C. Druce and M. Cobbe; and at Avonmouth Docks in 1933 by ? and 1939 by ? [BMAG].
Sisymbrium officinale (L.) Scop. (Hedge Mustard) / General Very Common Abundant everywhere on disturbed ground; especially so on field margins, hedgebanks, track-sides, pavements and brownfield sites. The var. leiocarpum mentioned in old texts is no longer recognised today. It was merely "a glabrous-podded state of a plant which does not differ from type in any other particular." (White, 1912). However, Riddelsdell (1948) added "This variety not only has hairless siliquas, but is of a different colour and slightly different habit from the typical form. There is no difficulty in recognising it at a distance".
Sisymbrium polyceratium L. (Horned Mustard) 1922 General Extinct A native of southern Europe; recorded at St. Philip's Marsh and Bedminster in 1922 by C.I. Sandwith. Otherwise known as Prostrate Hedge-mustard and Many-podded Hedge-mustard.

ISATIS L.

Isatis tinctoria L. (ssp. tinctoria) (Woad) 1906 General Very Rare A very rare introduction; formerly much cultivated to create a blue dye and still occasionally grown on allotments and in herb gardens for personal use. Only recorded recently at ST57J in 2010s by ? [BSBI record].

[Check 2018 and 2023 records as they seem suspicious.]

ALLIARIA Heist. ex Fabr.

Alliaria petiolata (M. Bieb.) Cavara & Grande (Garlic Mustard) / Woodland Very Common Abundant in every hedgebank, amongst scrub, open woodland, and disturbed ground. Otherwise commonly known as Jack-by-the-hedge. Also Jack in the Bush (Riddelsdell, 1948) and Sauce-alone (White, 1912).

PACHYPHRAGMA (DC.) Rchb.

Pachyphragma macrophyllum (Hoffm.) N. Busch (Thlaspi macrophyllum Hoffm.) (Caucasian Penny-cress) - Woodland Very Rare A native of the Caucasus; widely naturalised in secondary woodland near Failand where it was first discovered in 1964 by J.H. Davie (a first British record) and still persists.

[Check BSBI records for further info.]

THLASPI L.

Thlaspi arvense L. (Field Penny-cress) / General Uncommon Scattered over the region in arable fields, allotments and roadsides but has greatly declined in comparison to what it used to be.

PELTARIA Jacq.

Peltaria alliacea Jacq. (Garlic Cress) - BRLSI General Very Rare A very rare introduction from Central Europe; recorded at Upper Swainswick, BANES in 2022 by R.D. Randall - a second record for Britain.

NOCCAEA Moench

Noccaea caerulescens (J. & C. Presl.) F.K. Mey. (Thlaspi caerulescens J. & C. Presl.) (Alpine Penny-cress) Grassland Very Rare A very rare plant of sparsely vegetated grassland on thin soils with a high lead content on the edge of the region around Sandford, where it has a liking for growing on ant-hills.

HESPERIS L.

Hesperis matronalis L. (ssp. matronalis) (Dame's-violet) General An uncommon garden escape which is sometimes found naturalised on roadsides, on the banks of rivers and streams, and in hedgebanks and woodland; often occurring close to habitation. First recorded in our region at "Blaise Castle Woods, Henbury" in 1840 by F.S. Powell and "St. Anne's Wood, Brislington" in the same year by T. B. Flower [BMAG] (White, 1912).

BUNIAS L.

Bunias orientalis L. (Warty-cabbage) General Very Rare A native of eastern Europe. "It occurred in several spots by the Great Western and Midland railways between Bristol and Bath, 1899 and 1900; C. Withers and D. Fry. A large plant near Saltford, June, 1901; and one still there in 1904" (White, 1912); Avonmouth Docks in 1932 by H.J. Gibbons; there again in 1948 by ? [BMAG]; at ST57 in 1980s by ? [BSBI record - probably also Avonmouth]; at Sheepcombe Farm, Tockington in 1985 by R.C. Leeson; locally frequent on the corner of a wheat field at Hawkesbury Upton in 2014 by C. & M.A.R. Kitchen; and ST69L in 2020s by ? [BSBI record].
Bunias erucago L. (Southern Warty-cabbage) 1940 General Extinct A native of the Mediterranean; recorded "by Portishead Dock, 1906... Miss Livett" (White, 1918) and at Ashton Gate in 1940 by ? [BMAG].

MATTHIOLA W.T. Aiton

Matthiola incana (L.) W.T. Aiton (ssp. incana) (Hoary Stock) Coasts Very Rare A very rare garden escape; well-naturalised on the sea cliffs at Portishead. Otherwise only recorded at Leigh Woods in 1975 by R.V. Russel and at Sandford, North Somerset in 2005 by ?.

LOBULARIA Desv.

Lobularia maritima (L.) Desv. (ssp. maritima) (Sweet Alison) / General Uncommon Widely grown in gardens and frequently becomes naturalised along pavements and particularly well-established on the dunes at Sand Bay.

MALCOLMIA W.T. Aiton

Malcolmia maritima (L.) W.T. Aiton (Virginia Stock) General Very Rare A very rare introduction; only recently recorded at Brandon Hill in 2016 by C. & M.A.R. Kitchen. First recorded in our area at St Anne's, Bristol in 1926 by C.I. Sandwith and at Avonmouth Docks in 1932 by H.J. Gibbons.

[More records on BSBI.]

STRIGOSELLA Boiss.

Strigosella africana (L.) Botsch. (Malcolmia africana (L.) W.T. Aiton) (African Stock) 1914 General Extinct A native of the Mediterranean; recorded as a "Casual on made ground, St. Philip's, Bristol, June, 1902 [there again in 1919 by Misses Cobbe (B.E.C. 1919)]. A fine plant on Portishead railway-sidings, June, 1907; Miss Roper. And another there in 1909; Miss Hill" (White, 1912); Portishead South in 1914 by C.I. Sandwith.

[2 records on BSBI - check for further info.]

COCHLEARIA L.

Cochlearia anglica L. (English Scurvygrass) / Coasts Scarce Locally common along the coast in mudflats, saltmarshes and along the tidal stretches of the River Avon. Earliest local record: "Cochlearia Anglica Atriplicis folia...etiamque in Bristoiae sinu Occidui Oceani, quò allidunt per stata incrementa undae [Cochlearia Anglica Atriplicis folia...and also in the Bristol Bay of the Western Ocean, where the waves beat with steady increments]." Lobel (1570).
Cochlearia anglica x C. officinalis = C. x hollandica Henrard (English x Common Scurvygrass) 1984 Coasts Extinct Recorded at Sand Bay in 1980s by ? [BSBI record].
Cochlearia pyrenaica DC. ssp. alpina (Bab.) Dalby (Pyrenean Scurvygrass) Wetland Very Rare I can't remember where the record is. I'm sure it was SRPG?
Cochlearia officinalis L. ssp. officinalis (Common Scurvygrass) Coasts Scarce Locally common on coastal cliffs and rock-faces; predominantly between Sandpoint and Uphill but rare further north and occasionally also found inland along salted roads. White (1912) gives the alternative name Spoonwort.
Cochlearia officinalis x C. danica (Common x Danish Scurvygrass) 1982 Coasts Extinct Recorded only once in our region - at ST36 in 1982 by ? [BSBI record]. It should be looked for wherever to to parents meet.
Cochlearia danica L. (Danish Scurvygrass) / Coasts Frequent Widespread and frequent along the sides of motorways and kerbsides. Once rare and restricted to thin turf, sea banks and cliffs along the coast, this species has spread rapidly inland along salted roads since 2000. First noted from our area on "Rocks near Kewstoke Road; St. Brody, Fl. Weston (1856)." (White, 1912).

TEESDALIA W.T. Aiton

Teesdalia nudicaulis (L.) W.T. Aiton (Shepherd's Cress) General Very Rare An introduction in our area. Recorded at ST68 in 1970s by ? [BSBI record] and at Bleadon, North Somerset in 2013 by ?.

IBERIS L.

Iberis sempervirens L. (Perennial Candytuft) /- General Very Rare A very rare introduction; first recorded in our region at ST58 in 1970s by ? [BSBI record] and long-established on the cliff tops of the Sea Walls in the Avon Gorge and by the former public conveniences on Sand Point where it was originally planted. Elsewhere recorded at ST57W in 2000s by ?; at ST45P in 2010s by ?; and at Clevedon in 2020s by ? [BSBI records]. This is one of the main food plants of the Southern Small White butterfly (Pieris mannii) - recorded for the first time in Britain in 2025 and is expected to become established.

[Other records need checking.]

Iberis amara L. (Wild Candytuft) General Very Rare A native to Britain but probably in all cases an introduction here. First recorded "Near Bristol" c. 1840 by G.H.K. Thwaites (Riddelsdell, 1948); "Cornfield, Dugar (near Bishopston), 25 June, 1850; Herb. Cundall...Railway-sidings at Fox's Wood Quarries, 1894. Portishead Station-yard, July, 1904. On the Anchor Head rocks at Weston-super-Mare, July, 1881; doubtless derived from a garden above" (White, 1912); quarry near Dundry in 1920 by C.I. Sandwith; Stoke Bishop in 1985 by I.F. Gravestock; Winford, North Somerset in 1986 by S. Manning; Lamplighters Marsh in 1989 by I.F. Gravestock; and for the only time in recent years at ST36L in 2020s by ? [BSBI record].
Iberis umbellata L. (Garden Candytuft) / General Rare A rare garden escape of tips, roadsides and brownfield sites; only recorded a handful of occasions since 2000: at Redland, Bristol in 2002 by ?; Fishponds in 2002 by ?; Hotwells in 2016 by ?; at ST67B in 2010s by ?; at ST57S in 2010s by ?; ST69R in 2020s by ? [BSBI records]; and at the base of a street tree on Wellington Hill, Henleaze in 2022 by D. Peters.

[Perhaps don't mention records.]

Iberis odorata L. - [Sandwith, 1932 (as I. acutiloba)] General Extinct. A native of the Mediterranean; recorded at Bedminster in 1922 by C.I. Sandwith - a first and only record for the British Isles.

List:

Erysimum cheiranthoides L. (Treacle-mustard) / General
Erysimum virgatum Roth. (European Wallflower - GBIF, Twiggy Wallflower?, Twiggy Treacle-mustard?) 1842 General
Erysimum repandum L. (var. repandum - Kew, GBIF) (Spreading Treacle-mustard) 1928 General
Erysimum cheiri (L.) Crantz (E. corinthium × ? = E. × cheiri (L.) Crantz - Kew) (Wallflower) / General
Arabidopsis thaliana (L.) Heynh. (Thale Cress) / General
Camelina sativa (L.) Crantz (Gold-of-pleasure - Stace, NBN, German-sesame - GBIF) General
Camelina alyssum (Mill.) Thell. (ssp. alyssum - Kew, GBIF) (Gold-of-pleasure - GBIF, Flora of Northern Ireland) 1937 General
Camelina microcarpa Andrz. ex DC. (Lesser Gold-of-pleasure) 1984 General
Neslia paniculata (L.) Desv. (ssp. paniculata - Kew, NBN, GBIF) (Ball Mustard) 1932 General
Neslia paniculata (L.) Desv. ssp. thracica (Velen.) Bornm. (Ball Mustard) - BSBI General
Capsella bursa-pastoris (L.) Medik. (ssp. bursa-pastoris - Kew, GBIF) (Shepherd's-purse) / General
Capsella rubella Reut. (Pink Shepherd's-purse) - BSBI General
Turritis glabra L. (Tower Mustard) - [as Arabis glabra on DB] General
Barbarea vulgaris W.T. Aiton (Winter-cress) / General
Barbarea stricta Andrz. (Small-flowered Winter-cress) General
Barbarea intermedia Boreau (Medium-flowered Winter-cress) / General
Barbarea verna (Mill.) Asch. (American Winter-cress) / General
Rorippa islandica (Oeder ex Gunnerus) Borbás (ssp. islandica - Kew, GBIF) (Northern Yellow-cress) Wetland
Rorippa palustris (L.) Besser (Marsh Yellow-cress) /- Wetland
Rorippa sylvestris (L.) Besser (Creeping Yellow-cress) Wetland
Rorippa amphibia (L.) Besser (Great Yellow-cress) Wetland
Rorippa austriaca (Crantz) Besser (Austrian Yellow-cress) / General
Nasturtium officinale W.T. Aiton (Stace) Rorippa nasturtium-aquaticum (L.) Hayek (NBN) (Water-cress) / Wetland
Nasturtium officinale x N. microphyllum = N. x sterile (Airy Shaw) Oefelein (Stace) Rorippa nasturtium-aquaticum x R. microphylla = R. x sterilis Airy Shaw (NBN) (Hybrid Water-cress) 1981 Wetland
Nasturtium microphyllum (Boenn.) Rchb. (Stace) Rorippa microphylla (Boenn.) Hyl. ex Á. & D. Löve (NBN) (Narrow-fruited Water-cress) - Wetland
Armoracia rusticana P. Gaertn., B. Mey. & Scherb. (Horse-radish) / General
Cardamine bulbifera (L.) Crantz (Coralroot) Woodland
Cardamine amara L. (ssp. amara - Kew, GBIF) (Large Bitter-cress) Wetland
Cardamine pratensis L. (ssp. pratensis - Kew, GBIF) (Cuckooflower) / Wetland
Cardamine pratensis x C. flexuosa = C. x fringsii F. Wirtg. (Cuckooflower x Wavy Bitter-cress) Wetland
Cardamine impatiens L. (Narrow-leaved Bitter-cress) - Woodland
Cardamine flexuosa With. (Wavy Bitter-cress) / Wetland
Cardamine hirsuta L. (Hairy Bitter-cress) / General
Cardamine corymbosa Hook. f. (New Zealand Bitter-cress) General
Lepidium sativum L. (Garden Cress) - General
Lepidium campestre (L.) W.T. Aiton (Field Pepperwort) /- General
Lepidium heterophyllum Benth. (ssp. smithii Hook. - Stace) (ssp. heterophyllum - Kew, GBIF) (Smith's Pepperwort) Grassland
Lepidium ramosissimum A. Nelson (Branched Pepperwort, Manybranched Pepperweed - Lady Bird Johnson Wildflower Centre, Pepperweed - GBIF) - [Sandwith, 1932] General
Lepidium virginicum L. (ssp. virginicum - Kew, GBIF) (Least Pepperwort) 1940 General
Lepidium densiflorum Schrad. (Apetalous Pepperwort - Stace) - [Sandwith, 1932]
Lepidium bonariense L. (Argentine Pepperwort) 1922 General
Lepidium ruderale L. (Narrow-leaved Pepperwort) General
Lepidium perfoliatum L. (Perfoliate Pepperwort) 1932 General
Lepidium latifolium L. (Dittander) Wetland
Lepidium graminifolium L. (Tall Pepperwort) - [Sandwith, 1932] General
Lepidium draba L. ssp. draba (Hoary Cress) / General
Lepidium draba L. ssp. chalepense (L.) Thell. (L. chalepense L. - Kew) General
Lepidium coronopus (L.) Al-Shehbaz (Stace, NBN) Coronopus squamatus (Forssk.) Asch. (old name) (Swine-cress) / General
Lepidium didymum L. (Stace, NBN) Coronopus didymus (L.) Sm. (old name) (Lesser Swine-cress) / General
Lunaria annua L. (ssp. annua - Kew, GBIF) (Honesty) / General
Lunaria rediviva L. (Perennial Honesty) General
Alyssum alyssoides (L.) L. (Small Alison) 1898 General
Alyssum hirsutum M. Bieb. (Hairy Alison?) 1897 General
Alyssum simplex Rudolphi (Field Alison - iNaturalist, Simple Alison?, Unbranched Alison?, European Madwort - The AMERICAN SOUTHWEST, Alyssum - GBIF) 1907 General
Alyssum montanum L. (Mountain Alison) General
Aurinia saxatilis (L.) Desv. (ssp. saxatilis - Kew, GBIF) (Golden Alison) - [as Alyssum saxatile on DB] General
Berteroa incana (L.) DC. (Hoary Alison) 1915 General
Descurainia pinnata (Walter) Britton (ssp. pinnata - Kew, GBIF) (Tansy-mustard) 1922 General
Descurainia sophia (L.) Webb ex Prantl (ssp. sophia - Kew, GBIF) (Flixweed) General
Hornungia petraea (L.) Rchb. (Hutchinsia) /- General
Arabis caucasica Willd. ex Schltdl. (Garden Arabis) - General
Arabis hirsuta (L.) Scop. (ssp. hirsuta - Kew, GBIF) (Hairy Rock-cress) / General
Arabis scabra All. (Bristol Rock-cress) / General
Aubrieta deltoidea (L.) DC. (Aubretia) / General
Drabella muralis (L.) Fourr. (Stace) Draba muralis L. (Wall Whitlowgrass) General
Draba aizoides L. (ssp. aizoides - Kew, GBIF) (Yellow Whitlowgrass) 1912 General
Erophila majuscula Jord. (Draba majuscula (Jord.) Hayek & Wibiral - Kew) (Hairy Whitlowgrass) General
Erophila verna (L.) DC. (Draba verna L. - Kew, GBIF) (var. verna and var. praecox (Steven) Diklić- Stace, NBN (Draba praecox Steven - Kew)) (Common Whitlowgrass) / General
Erophila glabrescens Jord. (Draba glabrescens (Jord.) Hayek & Wibiral - Kew) (Glabrous Whitlowgrass) /- General
Carrichtera annua (L.) DC. (Cress Rocket) General
Conringia orientalis (L.) Dumort. (Hare's-ear Mustard) 1932 General
Conringia austriaca (Jacq.) Sweet. (Southern Hare's-ear Mustard) - Glos. Fl. General
Diplotaxis tenuifolia (L.) DC. (Perennial Wall-rocket) / General
Diplotaxis muralis (L.) DC. (ssp. muralis - Kew, GBIF) (Annual Wall-rocket) / General
Diplotaxis viminea (L.) DC. (Vineyard Wall-rocket - NBN, GBIF) - [Sandwith, 1932] General
Diplotaxis catholica (L.) DC. (Catholic Wall-rocket?, Catholica Diplotaxis, Catholica False Peanut - SELINA WAMUCII) - [Sandwith, 1932] General
Diplotaxis tenuisiliqua Delile (ssp. tenuisiliqua - Kew, GBIF) (Narrow-podded Wall-rocket - name translated) Plant Biodiversity of South-Western Morocco General
Diplotaxis erucoides (L.) DC. (White Wall-rocket) 1919 / General
Euclidium syriacum (L.) W.T. Aiton (Syrian Mustard - GBIF) - Glos. Fl. General
Brassica oleracea L. var. oleracea (Wild Cabbage) General
Brassica oleracea L. (var. capitata L. - Stace, NBN - probably all other vars. exist) (Cabbage) - General
Brassica oleracea L. var. viridis L. (Kale) General
Brassica napus L. ssp. oleifera (DC.) Metzg. (Oil-seed Rape) / General
Brassica napus L. ssp. rapifera Metzg. (Swede) General
Brassica rapa L. ssp. campestris (L.) A.R. Clapham (Wild Turnip) Wetland
Brassica rapa L. ssp. oleifera (DC.) Metzg. (Turnip-rape) General
Brassica tournefortii Gouan (Coincya tournefortii (Gouan) Alcaraz, T.E. Díaz, Rivas Mart. & Sánchez-Gómez - Kew) (Pale Cabbage) 1949 General
Brassica juncea (L.) Czern. (Brassica rapa × Mutarda nigra = X Brassarda juncea (L.) Su Liu & Z.H. Feng - Kew) (Chinese Mustard) / General
Brassica elongata Ehrh. (ssp. elongata - Kew, GBIF) (Long-stalked Rape) 1929 General
Brassica elongata Ehrh. ssp. integrifolia (Boiss.) Breistr. General - [Sandwith, 1932 (as B. elongata var. integrifolia)]
Brassica nigra (L.) W.D.J. Koch (Mutarda nigra (L.) Bernh. - Kew) (Black Mustard) / Wetland
Sinapis arvensis L. (Mutarda arvensis (L.) D.A. German - Kew) (Charlock) / General
Sinapis alba L. ssp. alba (White Mustard) General
Sinapis alba L. ssp. dissecta (Lag.) Bonnier (White Mustard) - [Sandwith, 1932 (as Brassica dissecta), Glos. Fl. (as Sinapis dissecta)] General
Eruca vesicaria (L.) Cav. ssp. sativa (Mill.) Thell. (E. sativa Mill. - Kew, GBIF) (Garden Rocket) 1978 - General
Erucastrum gallicum (Willd.) O.E. Schulz (Hairy Rocket) General
Erucastrum nasturtiifolium (Poiret) O. E. Schulz (ssp. nasturtiifolium - Kew) (Watercress-leaved Rocket) - [Sandwith, 1932 (as Brassica Erucastrum)] General
Hirschfeldia incana (L.) Lagr.-Foss. (ssp. incana - Kew, GBIF) (Hoary Mustard) / General
Coincya monensis (L.) Greuter & Burdet ssp. cheiranthos (Vill.) Aedo, Leadlay & Muñoz Garm. (Wallflower Cabbage) General
Cakile maritima Scop. ssp. maritima (Stace) ssp. integrifolia (Hornem.) Hyl. ex Greuter & Burdet (Sea Rocket) - Coasts
Myagrum perfoliatum L. (Mitre Cress) General
Rapistrum rugosum (L.) Bergeret ssp. linnaeanum (Coss.) Rouy & Foucaud (Bastard Cabbage) / General
Rapistrum perenne (L.) All. (Steppe Cabbage) 1923 General
Crambe maritima L. (Sea-kale) 1950 Coasts
Erucaria hispanica (L.) Druce (Spanish Pink Mustard - Flora of Israel and adjacent areas, Spanish Erucaria - iNaturalist) - [Sandwith, 1932 (as E. aleppica), Glos. Fl.] General
Raphanus raphanistrum L. ssp. raphanistrum (Wild Radish) / General
Raphanus raphanistrum L. ssp. maritimus (Sm.) Thell. (Sea Radish) / Coasts
Raphanus raphanistrum L. ssp. landra (Moretti ex DC.) Bonnier & Layens (Mediterranean Radish) - [Sandwith, 1932 (as L. landra)] General
Raphanus sativus L. (R. raphanistrum L. ssp. sativus (L.) Schmalh. - Kew) (Garden Radish) General
Chorispora tenella (Pall.) DC. (Bean-podded Mustard - GBIF, Purple Mustard, Blue Mustard, Musk Mustard, Crossflower - Wikipedia) - [Sandwith, 1932 (as Chorispermum tenellum)] General
Sisymbrium irio L. (London-rocket) 1930 General
Sisymbrium loeselii L. (False London-rocket) General
Sisymbrium septulatum DC. (Seven-Lobed Hedge Mustard - Selina Wamucii, Large-flowered Rocket, Partitioned Rocket - Flora of Israel and adjacent areas) General
Sisymbrium volgense M. Bieb. ex E. Fourn. (Russian Mustard) General
Sisymbrium altissimum L. (Tall Rocket) General
Sisymbrium orientale L. (Eastern Rocket) / General
Sisymbrium erysimoides Desf. (French Rocket) General
Sisymbrium officinale (L.) Scop. (Hedge Mustard) / General
Sisymbrium polyceratium L. (Horned Mustard - Stace, Prostrate Hedge-mustard - NBN, Many-podded Hedge-mustard - old flora) 1922 General
Isatis tinctoria L. (ssp. tinctoria - Kew) (Woad) 1906 General
Alliaria petiolata (M. Bieb.) Cavara & Grande (Garlic Mustard) / Woodland
Pachyphragma macrophyllum (Hoffm.) N. Busch (Stace) Thlaspi macrophyllum Hoffm. (NBN) (Caucasian Penny-cress) - Woodland
Thlaspi arvense L. (Field Penny-cress) / General
Peltaria alliacea Jacq. (Garlic Cress) - BRLSI General
Noccaea caerulescens (J. & C. Presl.) F.K. Mey. (Stace) Thlaspi caerulescens J. & C. Presl. (NBN) (Alpine Penny-cress) Grassland
Hesperis matronalis L. (ssp. matronalis - Kew, GBIF) (Dame's-violet) General
Bunias orientalis L. (Warty-cabbage) General
Bunias erucago L. (Southern Warty-cabbage) 1940 General
Matthiola incana (L.) W.T. Aiton (ssp. incana - Kew, GBIF) (Hoary Stock) Coasts
Lobularia maritima (L.) Desv. (ssp. maritima - Kew, GBIF) (Sweet Alison) / General
Malcolmia maritima (L.) W.T. Aiton (Virginia Stock) General
Strigosella africana (L.) Botsch. (Kew, EDIT) Malcolmia africana (L.) W.T. Aiton (NBN) (African Stock) 1914 General
Cochlearia anglica L. (English Scurvygrass) / Coasts
Cochlearia anglica x C. officinalis = C. x hollandica Henrard (Stace, NBN) (English x Common Scurvygrass) 1984 Coasts
Cochlearia pyrenaica DC. ssp. alpina (Bab.) Dalby (Pyrenean Scurvygrass) Wetland
Cochlearia officinalis L. ssp. officinalis (Common Scurvygrass) Coasts
Cochlearia officinalis x C. danica (Common x Danish Scurvygrass) 1982 Coasts
Cochlearia danica L. (Danish Scurvygrass) / Coasts
Teesdalia nudicaulis (L.) W.T. Aiton (Shepherd's Cress) General
Iberis sempervirens L. (Perennial Candytuft) /- General
Iberis amara L. (Wild Candytuft) General
Iberis umbellata L. (Garden Candytuft) / General
Iberis odorata L. - [Sandwith, 1932 (as I. acutiloba)] General

Species to add:

Neslia paniculata (L.) Desv. ssp. thracica (Velen.) Bornm. (Ball Mustard) - BSBI
Capsella rubella Reut. (Pink Shepherd's-purse) - BSBI
Turritis glabra L. (Tower Mustard) - [as Arabis glabra on DB] /
Rorippa islandica (Oeder ex Gunnerus) Borbás (ssp. islandica - Kew, GBIF) (Northern Yellow-cress) /
Cardamine amara L. (ssp. amara - Kew, GBIF) (Large Bitter-cress) /
Cardamine pratensis x C. flexuosa = C. x fringsii F. Wirtg. (Cuckooflower x Wavy Bitter-cress) /
Cardamine corymbosa Hook. f. (New Zealand Bitter-cress) /
Lepidium densiflorum Schrad. (Apetalous Pepperwort - Stace) - [Sandwith, 1932] /
Lepidium graminifolium L. (Tall Pepperwort) - [Sandwith, 1932] /
Lepidium ramosissimum A. Nelson (Branched Pepperwort, Manybranched Pepperweed - Lady Bird Johnson Wildflower Centre, Pepperweed - GBIF) - [Sandwith, 1932] /
Lunaria rediviva L. (Perennial Honesty) /
Aurinia saxatilis (L.) Desv. (ssp. saxatilis - Kew, GBIF) (Golden Alison) - [as Alyssum saxatile on DB] /
Erophila majuscula Jord. (Draba majuscula (Jord.) Hayek & Wibiral - Kew) (Hairy Whitlowgrass) /
Carrichtera annua (L.) DC. (Cress Rocket) /
Conringia austriaca (Jacq.) Sweet. (Southern Hare's-ear Mustard) - Glos. Fl. /
Diplotaxis viminea (L.) DC. (Vineyard Wall-rocket - NBN, GBIF) - [Sandwith, 1932] /
Diplotaxis catholica (L.) DC. (Catholic Wall-rocket?, Catholica Diplotaxis, Catholica False Peanut - SELINA WAMUCII) - [Sandwith, 1932] /
Diplotaxis tenuisiliqua Delile (ssp. tenuisiliqua - Kew, GBIF) (Narrow-podded Wall-rocket - name translated) Plant Biodiversity of South-Western Morocco /
Erucaria hispanica (L.) Druce (Spanish Pink Mustard - Flora of Israel and adjacent areas, Spanish Erucaria - iNaturalist) - [Sandwith, 1932 (as E. aleppica), Glos. Fl.] /
Euclidium syriacum (L.) W.T. Aiton (Syrian Mustard - GBIF) - Glos. Fl. /
Brassica oleracea L. var. oleracea (Wild Cabbage) /
Brassica napus L. ssp. rapifera Metzg. (Swede) /
Brassica elongata Ehrh. ssp. integrifolia (Boiss.) Breistr. - [Sandwith, 1932 (as B. elongata var. integrifolia)]
Sinapis alba L. ssp. dissecta (Lag.) Bonnier (White Mustard) - [Sandwith, 1932 (as Brassica dissecta), Glos. Fl. (as Sinapis dissecta)] /
Erucastrum nasturtiifolium (Poiret) O. E. Schulz (ssp. nasturtiifolium or ssp. sudrei? - Kew) (Watercress-leaved Rocket) - [Sandwith, 1932 (as Brassica Erucastrum)] /
Myagrum perfoliatum L. (Mitre Cress) /
Raphanus raphanistrum L. ssp. landra (Moretti ex DC.) Bonnier & Layens (Mediterranean Radish) - [Sandwith, 1932 (as L. landra)] /
Chorispora tenella (Pall.) DC. (Bean-podded Mustard - GBIF, Purple Mustard, Blue Mustard, Musk Mustard, Crossflower - Wikipedia) - [Sandwith, 1932 (as Chorispermum tenellum)] /
Sisymbrium septulatum DC. (Seven-Lobed Hedge Mustard - Selina Wamucii, Large-flowered Rocket, Partitioned Rocket - Flora of Israel and adjacent areas) /
Sisymbrium volgense M. Bieb. ex E. Fourn. (Russian Mustard) /
Sisymbrium erysimoides Desf. (French Rocket) /
Peltaria alliacea Jacq. (Garlic Cress) - BRLSI /
Cochlearia pyrenaica DC. ssp. alpina (Bab.) Dalby (Pyrenean Scurvygrass) /
Teesdalia nudicaulis (L.) W.T. Aiton (Shepherd's Cress) /
Iberis amara L. (Wild Candytuft) /
Iberis odorata L. - [Sandwith, 1932 (as I. acutiloba)] General /

Species added by me:

Alyssum montanum L. (Mountain Alison) /
Brassica oleracea L. var. viridis L. (Kale) General /
Brassica rapa L. ssp. oleifera (DC.) Metzg. (Turnip-rape) /

Could occur:

Capsella bursa-pastoris x C. rubella = C. x gracilis (Hybrid Shepherd's-purse)

Species to add from old texts:

already got:

Turritis glabra L. (Stace, Kew, GBIF) (Arabis glabra - NBN), Arabis perfoliata Lam., A. glabra (L.) Bernh. (Tower Mustard - Stace, NBN, GBIF) (Smooth Rock Cress) - Brist. Fl. and Glos Fl. - 1 record according to NBN
Sisymbrium erysimoides Desf. (French Rocket - Stace, NBN, GBIF) - Brist. Fl. & Glos. Fl. - 2 records according to NBN
Sisymbrium volgense M. Bieb. ex Fourn., (S. hispanicum sensu J. W. White, non Jacq.) (Russian Mustard - Stace, NBN, GBIF) - Glos. Fl. - 2 records according to NBN
Sisymbrium septulatum DC. (Seven-Lobed Hedge Mustard - Selina Wamucii
, Partitioned Rocket, Large-flowered Rocket - Flora of Israel Online) - Glos. Fl.
Conringia orientalis (L.) Dumort., Brassica orientalis L., Erysimum orientale (L.) Crantz. (Hare's-ear Mustard - NBN) - Glos. Fl. - 5 records according to NBN
Neslia paniculata (L.) Desv. ssp. thracica (Velen.) Bornm. (Ball Mustard) - [Brist. Fl., Sandwith, 1932 (as Vogelia paniculata), Glos. Fl.