Purple Gromwell - Aegonychon purpureocaeruleum
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Species Description
Nationally Rare as a native, being limited to the South West; but widespread and sparse as a garden escape. Habitat includes: woodland edge / rides, lane-sides, banks in partial shade, open scrub, slumped cliffs, slopes, crags etc. Growing habit: Rhizomatous Perennial. Height: Up to 60cm. Flowers: May to June.
Stace 4:
Aegonychon purpureocaeruleum (L.) Holub (Buglossoides purpureocaerulea) (L.) I.M. Johnst., Lithospermum purpureocaeruleum L.) - Purple Gromwell.
Rhizomatous Perennial with long procumbent stolons rooting at apex and erect flowering stems to 60cm; corolla 11-16mm, purplish-blue; nutlets white, smooth, shining; (2n=16). Native; scrub and wood-margins on chalk and limestone; very local in South West England, South and North Wales, formerly West Kent, scattered naturalised elsewhere.