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Rubus - Rubus

Group Description

Stace 4:

Subgenus 6 - RUBUS.

Stems woody, biennial (to perennial), suckering from base, usually stoloniferous, usually with strong prickles and acicles; rhizomes 0; leaves palmate; fruits usually black, sometimes red, not readily separating from receptacle. R. ulmifolius is a sexual diploid with 2n=14, but all other microspecies are facultative apomicts (mostly tetraploides but also triploids, pentaploids, hexaploids and heptaploids) that require pollination in order to reproduce even apomictic seed. Sexual seed can also be produced, and hybridisation is common. 334 microspecies are currently recognised. Although abundant and characteristic of much of Central and Southern British Isles, this subgenus is much less common in Scotland; only about 16 microspecies reach Outer Hebridies and no native ones reach Orkney or Shetland.

SubGroups

name latinname species sightings media image
Dewberry x Elmleaf Blackberry Rubus caesius x R. ulmifolius 1 2 23 image for Dewberry x Elmleaf Blackberry
Dewberry x Giant Blackberry Rubus caesius x R. armeniacus 1 1 6 image for Dewberry x Giant Blackberry
Dewberry x Giant Bramble Rubus caesius x R. armeniacus 1 1 5 image for Dewberry x Giant Bramble
Dewberry x Railway Bramble Rubus caesius x R. tuberculatus 1 3 21 image for Dewberry x Railway Bramble
Dewberry x Railway Bramble Rubus caesius x R. tuberculatus 1 1 21 image for Dewberry x Railway Bramble
Dewberry x Yorkshire Bramble Rubus caesius x R. eboracensis 1 1 5 image for Dewberry x Yorkshire Bramble
Elmleaf x Yorkshire Bramble Rubus ulmifolius x R. eboracensis 1 1 22 image for Elmleaf x Yorkshire Bramble
European Blackberry x Railway Bramble Rubus vestitus x R. tuberculatus 1 2 21 image for European Blackberry x Railway Bramble
Giant Blackberry x European Blackberry Rubus armeniacus x R. vestitus 1 1 0 image for Giant Blackberry x European Blackberry
Giant Blackberry x Railway Bramble Rubus armeniacus x R. tuberculatus 1 1 16 image for Giant Blackberry x Railway Bramble
Giant x Conjoined Bramble? Rubus armeniacus x R. conjungens? 1 1 7 image for Giant x Conjoined Bramble?
Rubus eboracensis x R. polyanthemus Rubus eboracensis x R. polyanthemus 1 1 11 image for Rubus eboracensis x R. polyanthemus
Rubus eboracensis x R. radula Rubus eboracensis x R. radula 1 1 12 image for Rubus eboracensis x R. radula
Rubus rubritinctus x R. tuberculatus Rubus rubritinctus x R. tuberculatus 1 1 4 image for Rubus rubritinctus x R. tuberculatus
Rubus section Caesii Rubus section Caesii 1 12 39 image for Rubus section Caesii
Rubus section Corylifolii Rubus section Corylifolii 19 48 479 image for Rubus section Corylifolii
Rubus section Glandulosus Rubus section Glandulosus 69 239 1859 image for Rubus section Glandulosus
Rubus section Rubus Rubus section Rubus 2 4 46 image for Rubus section Rubus