Rubus ulmifolius |
Rubus bifrons |
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elm-leaf blackberry |
Himalayan blackberry |
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Habit | Strong, more or less evergreen perennial, the stems up to 10 m. long, ascending to sprawling, armed with strong, flattened prickles. | |
Leaves | Leaves mostly 5-foliate, the leaflets broadly oblong to ovate, short acuminate, 6-12 cm. long, sharply serrate, bright green and glabrous above, grayish-woolly beneath. |
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Flowers | Inflorescence a flat-topped panicle; calyx woolly, the 5 segments reflexed, lanceolate, 8-12 mm. long; petals 5, white to reddish tinged, oval-obovate, 10-15 mm. long; stamens 100 or more; pistils many, the style slender, glabrous. |
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Fruits | Drupelets coherent, and with the fleshy receptacle forming a nearly globose blackberry 1.5 cm. thick. |
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Rubus ulmifolius |
Rubus bifrons |
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Flowering time | May-July | May-August |
Habitat | Fields, thickets, forest edge, and other disturbed areas. | Disturbed areas, riparian zones, and forest edges at low elevations. |
Distribution | Occurring west of the Cascades crest in Washington; southwestern British Columbia to California and Nevada; also in New Jersey.
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Occurrng on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, southern Great Plains, and eastern North America.
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Origin | Introduced Europe and northern Africa | Introduced from Eurasia |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
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