From WordNet (r) 2.0 (August 2003) [wn]:
Barbarea
n : biennial or perennial herbs of north temperate regions:
winter cress [syn: Barbarea, genus Barbarea]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Barbarea \Barbarea\ n.
a genus of biennial or perennial herbs of north temperate
regions: winter cress.
Syn: genus Barbarea..
[WordNet 1.5]