Vascular Plants of North Carolina
Account for Himalayan Blackberry - Rubus bifrons   Vest
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Section 6 » Order Rosales » Family Rosaceae
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AuthorVest
DistributionMostly in the Piedmont; also scattered in the Mountains and northern Coastal Plain.

Native of Europe; in N.A. southern Canada the throughout the U.S. except the northern Midwest plains.
AbundanceUncommon; perhaps rare in the Mountains and Coastal Plain.
HabitatRoadsides, roadbanks, railroad edges, thickets, open or disturbed woods, clearings, disturbed ground.
PhenologyFlowering May-June; fruiting June-July.
IdentificationHimalayan Blackberry has 3-5 broadly ovate leaflets per leaf; all are ashy gray beneath, the terminal one often rather orbicular. The canes are armed with numerous, relatively straight thorns and these extend right into the inflorescence.
Taxonomic CommentsSynonyms include R. procerus. FNA (2014) has a lengthy discussion about whether R. discolor Weihe & Nees is distinct from R. bifrons. FNA concludes that the former name has been misapplied to the latter and that all eastern U.S. material is R. bifrons.

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State RankSE
Global RankG5
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