Rubus insulanus
   HOME

TheInfoList



OR:

''Rubus pensilvanicus'', known commonly as Pennsylvania blackberry, is a prickly bramble native to eastern and central
North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
from
Newfoundland Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...
south to Georgia, west as far as Ontario, Minnesota, Nebraska, and Arkansas. The species is also established as a naturalized plant in California.Calflora taxon report, University of California, ''Rubus pensilvanicus'' Poiret, Pennsylvania blackberry
/ref> ''Rubus pensilvanicus'' is a prickly shrub up to 3 meters (10 feet) tall. The canes are green at first but then turn dark red, usually ridged, with copious straight prickles. The leaves are palmately compound, usually bearing 5 or 7 leaflets. The flowers are white with large petals, borne in mid-spring. The fruits are large aggregates of 10-100 black drupelets, somewhat sweet and often used for jams and jellies. The genetics of ''Rubus'' is extremely complex, making it difficult to separate the group into species. What some authors lump together as ''R. pensilvanicus'', other authors split into as many as 50 or 60 species.


References


External links

* * *
Jepson Manual Treatment
* * * pensilvanicus Flora of North America Plants described in 1804 Berries {{Rubus-stub