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

Distribution of Rubus allegheniensis
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SUBTAXA PRESENT IN BC

Rubus allegheniensis var. allegheniensis

Species Information

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Illustration Source: The Illustrated Flora of British Columbia

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

Habitat / Range

Ecology

Climate

Status Information

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links

Additional Photo Sources

General References

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: 2025-04-13 5:08:05 PM ]

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