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Rubus allegheniensis
''Rubus allegheniensis'' is a species of bramble, known as Allegheny blackberry and simply as common blackberry. Like other blackberries, it is a species of flowering plant in the rose family. It is very common in eastern and central North America. It is also naturalized in a few locations in California and British Columbia.〔(Biota of North America Program 2014 county distribution map )〕
==Description==
Characteristics can be highly variable.〔 It is an erect bramble, typically 5 feet (150 cm) but occasionally rarely over 8 feet (240 cm) high, with single shrubs approaching 8 feet or more in breadth, although it usually forms dense thickets of many plants. Leaves are alternate, compound, ovoid, and have toothed edges.〔〔(Flora of North America, ''Rubus allegheniensis'' Porter, 1896. Allegheny or common blackberry, sow-teat berry, ronce des Alléghanys )〕
Thorny canes, with white, 5-petal, ¾ inch (19 mm) flowers in late spring and glossy, deep-violet to black, aggregate fruit in late summer.〔 Shade intolerant.〔Peterson, Chris J., and Steward T.A. Pickett. "Forest reorganization: a case study in an old-growth forest catastrophic blowdown." ''Ecology.'' 76 (1995): 763+. Retrieved 14 Oct. 2012.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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