The Collaborative International Dictionary of English v.0.48:

Brankursine \Brank"ur*sine\, n. [F. branc-ursine, branch-ursine,
   fr. LL. branca claw + L. ursinus belonging to a bear (fr.
   ursus bear), i. e., bear's claw, because its leaves resemble
   the claws of a bear. Cf. Branch.] (Bot.)
   Bear's-breech, or Acanthus.
   [1913 Webster]