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

Rubus allegheniensis Porter
Alleghaney blackberry (Allegheny blackberry; Prairie Rose)
Rosaceae (Rose family)

Introduction to Vascular Plants

© Bonnie Fairbairn  Email the photographer   (Photo ID #86958)

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Distribution of Rubus allegheniensis
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SUBTAXA PRESENT IN BC
Rubus allegheniensis var. allegheniensis

Species Information

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General:
Medium to tall shrub, 0.5-3 m tall; stems 5-15 mm in diameter, erect to ascending, with stout, flattened, straight prickles.
Leaves:
Alternate, deciduous, palmately compound; leaflets 5, oblong-egg-shaped, 7-20 cm long, finely saw-toothed and long-tapering to a sharp-pointed tip, the leaf-stalks soft-hairy, glandular and hooked-prickly.
Flowers:
Inflorescence of many stalked flowers in an open, long, raceme-like cluster, the stalks fine-woolly and glandular; corollas white, the petals 5, spreading, egg-shaped, 5-10 mm long; calyces woolly, 5-lobed, the lobes lanceolate, bent back; ovaries superior; stamens numerous.
Fruits:
Drupelets, coherent in a black oblong cluster that falls with the fleshy receptacle (a blackberry), the berries about 2 cm long.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
White
Blooming Period:
Mid Spring
Fruit/Seed characteristics:
Colour: Black
Present over the Summer
Source:  The USDA

Habitat / Range

Moist waste places, boggy clearings and thickets in the lowland zone; locally frequent in the lower Fraser Valley; introduced from E North America.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Rubus allegheniensis

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) 210 210 210
Slope Gradient (%) 7 7 7
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W] 		225 225 225
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
Modal Nutrient Regime
Class
Number of field plots
 species was recorded in:		 1
Modal BEC Zone Class
 CWH
All BEC Zones (# of stations/zone) species was recorded in: CWH(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


Genetic information (NCBI Taxonomy Database)
 International Plant Names Index
 Taxonomic Information from the World Flora Online
 Integrated Taxonomic Information System

Additional Photo Sources

Images From CalPhoto
UT Austin's Native Plant Database
 Google Image Search
 Flickr Image Search

General References

Google Scholar Search
Family References
 General Botanical References for BC
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-05-13 9:11:14 AM ]
Disclaimer: The information contained in the E-Flora atlas pages is derived from expert sources as cited in each section. This information is scientifically based. E-Flora also acts as a portal to other sites via deep links. As always, users should refer to the original sources for complete information. E-Flora BC is not responsible for the accuracy or completeness of the original information.
© E-Flora BC: An initiative of the Spatial Data Lab, Department of Geography UBC, and the UBC Herbarium.