Robinia

from WordNet (r) 3.0 (2006)

Robinia
    n 1: deciduous flowering trees and shrubs [syn: {Robinia},
         {genus Robinia}]

from The Collaborative International Dictionary of English v.0.48

Robinia \Ro*bin"i*a\, n. [NL. So called after Jean Robin, a
   French herbalist.] (Bot.)
   A genus of leguminous trees including the common locust of
   North America ({Robinia Pseudocacia}).
   [1913 Webster]