Dictionary.net

• small tufted perennial herb of mountains of central and southern Europe having very small flowers of usually leafless stems; sometimes placed in genus Lepidium

2006 - WordNet 3.0
By Princeton University

• small tufted perennial herb of mountains of central and southern Europe having very small flowers of usually leafless stems; sometimes placed in genus Lepidium

2011 - English Dictionary Database
By DataStellar Co., Ltd