Rubus leucodermis
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| Rubus leucodermis Dougl. ex Torr. & A.Gray. |
Rubus leucodermis (Blackcap Raspberry, Blue Raspberry, or Whitebark Raspberry) is a species of Rubus native to western North America, from British Columbia, Canada south to California, New Mexico and Mexico. It is closely related to the eastern Black Raspberry Rubus occidentalis.
It is a deciduous shrub growing to 0.5-2 m tall, with thorny shoots. While the crown is perennial, the canes are biennial, growing vegetatively one year, flowering and fruiting the 2nd and then dying. As with other black raspberries, the tips of the 1st year canes (primocanes) "rattail" in the fall and grow downward to the soil where they root and form tip layers which become new plants. The leaves are pinnate, with five leaflets on leaves strong-growing stems in their first year, and three leaflets on leaves on flowering branchlets with white, seldom light purple flowers. The fruit has a high contents of anthocyanins and ellagic acid.
There exist a great variation of local subgeners as well as natural hybrids with other species in subgenus Idaeobatus. Three varieties are recognized:
- Rubus leucodermis var. leucodermis
- Rubus leucodermis var. bernadinus Jepson
- Rubus leucodermis var. trinitatis Berger
[edit] External links
- Jepson Flora Project: Rubus leucodermis
- Plants of British Columbia: Rubus leucodermis
- Germplasm Resources Information Network: Rubus leucodermis
- NCRS: USDA Plants Profile: Rubus leucodermis
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