The Collaborative International Dictionary of English v.0.48:

Hardenbergia \Hardenbergia\ prop. n.
   A small genus of Australian woody vines with small violet
   flowers; closely related to genus Kennedia.

   Syn: genus Hardenbergia.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Hardenbergia
    n 1: small genus of Australian woody vines with small violet
         flowers; closely related to genus Kennedia [syn:
         Hardenbergia, genus Hardenbergia]