The Collaborative International Dictionary of English v.0.48:

Baptisia \Baptisia\ prop. n.
   A genus of North American plants with showy pealike flowers
   and an inflated pod.

   Syn: genus Baptisia.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Baptisia
    n 1: genus of North American plants with showy flowers and an
         inflated pod [syn: Baptisia, genus Baptisia]