Rubus leucodermis

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Rubus leucodermis
var. bernardinus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rosaceae
Genus: Rubus
Subgenus: Idaeobatus
Species: R. leucodermis
Binomial name
Rubus leucodermis
Dougl. ex Torr. & A.Gray.

Rubus leucodermis (blackcap raspberry,[1] black raspberry,[2] whitebark raspberry,[2][3] or blue raspberry,[4]) is a species of Rubus native to western North America, from British Columbia, Canada south to California, New Mexico and Mexico.[5] It is closely related to the eastern black raspberry Rubus occidentalis.

It is a deciduous shrub growing to 0.5–3 m tall, with prickly shoots. While the crown is perennial, the canes are biennial, growing vegetatively one year, flowering and fruiting the second, and then dying. As with other dark raspberries, the tips of the first-year canes (primocanes) often grow downward to the soil in the fall, and take 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 and infrequently light purple flowers. The fruit is 1–1.2 cm diameter, red to reddish-purple at first, turning dark purple to nearly black when ripe.[6] The fruit has high contents of anthocyanins and ellagic acid.[1][2]

The fruit is the basis of Blue raspberry flavor, a popular flavor for candy, syrups and other sweets.

It is a variable species, and forms natural hybrids with other species in subgenus Idaeobatus. Three varieties are recognized:[3]

  • Rubus leucodermis var. leucodermis
  • Rubus leucodermis var. bernardinus Jepson
  • Rubus leucodermis var. trinitatis Berger

See also[edit]


  1. ^ a b "Jepson Flora Project: ''Rubus leucodermis''". Retrieved 2012-08-27. 
  2. ^ a b c "Plants of British Columbia: ''Rubus leucodermis''". 2011-07-22. Retrieved 2012-08-27. 
  3. ^ a b "NCRS: USDA Plants Profile: ''Rubus leucodermis''". Retrieved 2012-08-27. 
  4. ^ "Rubus Leucodermis - Exoplantus". (archived 2011-08-23). Retrieved 2014-05-04. 
  5. ^ John H. Wiersema. "Germplasm Resources Information Network: ''Rubus leucodermis''". Retrieved 2012-08-27. 
  6. ^ Pojar, Jim; Andy MacKinnon (2004). Plants Of The Pacific Northwest Coast: Washington, Oregon, British Columbia & Alaska. Lone Pine Publishing. p. 77. ISBN 978-1-55105-530-5.