rubus fruticosus

from WordNet (r) 3.0 (2006)

Rubus fruticosus
    n 1: the true blackberry of Europe as well as any of numerous
         varieties having sweet edible black or dark purple berries
         [syn: {true blackberry}, {Rubus fruticosus}]

from The Collaborative International Dictionary of English v.0.48

Blackberry \Black"ber*ry\ (bl[a^]k"b[e^]r*r[y^]), n. [OE.
   blakberye, AS. bl[ae]cberie; bl[ae]c black + berie berry.]
   The fruit of several species of bramble ({Rubus}); also, the
   plant itself. {Rubus fruticosus} is the blackberry of
   England; {Rubus villosus} and {Rubus Canadensis} are the high
   blackberry and low blackberry of the United States. There are
   also other kinds.
   [1913 Webster]