E-Flora BC: Electronic Atlas of the Flora of British Columbia

Rubus leucodermis Dougl. ex T. & G.
black raspberry (Dwarf Bramble; whitebark raspberry)
Rosaceae (Rose family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #2426)

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Distribution of Rubus leucodermis
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Species Information

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General:
Medium shrub, 0.5-2 m tall; stems erect to ascending, some arching back to the ground and sometimes rooting at the tip, armed with short, stiff, somewhat flattened, recurved or sometimes straight prickles, very glaucous.
Leaves:
Alternate, deciduous, pinnately compound; leaflets 3 (to 5), egg-shaped to broadly lanceolate, 2-8 cm long, double-saw-toothed and sometimes lobed, sharp-pointed at the tip, greenish and smooth above, white-woolly beneath, the veins and leaf-stalks prickly; stipules linear, 5 mm long.
Flowers:
Inflorescence of 2 to 7 stalked flowers in small, open, umbel-like to flat-topped, terminal or sometimes axillary clusters, the stalks woolly and prickly; corollas white, the petals 5, erect, spoon-shaped, 3-5 mm long; calyces woolly and often glandular, 5-lobed, the lobes lanceolate, long-pointy-tipped, bent back, 6-12 mm long; ovaries superior; stamens 70-100.
Fruits:
Drupelets, finely and thinly woolly, in a reddish-purple to black, globe-shaped cluster that falls intact from the dry receptacle (a raspberry), the berries 1-1.2 cm wide.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
White
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Black
Present from Summer to Fall
Source:  The USDA

Habitat / Range

Dry to moist thickets, rocky slopes, clearings and open forests of the lowland to montane zones; common in SW BC, infrequent in SC and SE BC; S to MT, WY, UT, NV and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Rubus leucodermis

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Minimum

Average

Maximum

Elevation (metres) 10 434 1587
Slope Gradient (%) 0 22 120
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
3 216 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 3 8
Modal Nutrient Regime
Class
B
Number of field plots
 species was recorded in:
285
Modal BEC Zone Class
CWH
All BEC Zones (# of stations/zone) species was recorded in: CDF(6), CWH(175), ESSF(4), ICH(21), IDF(4), MH(1), PP(1)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

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General References