loasa

from WordNet (r) 3.0 (2006)

loasa
    n 1: any of various perennial South American plants of the genus
         Loasa having stinging hairs and showy white or yellow or
         reddish-orange flowers

from The Collaborative International Dictionary of English v.0.48

loasa \loasa\ n.
   any of various perennial South American plants of the genus
   {Loasa} having stinging hairs and showy white or yellow or
   reddish-orange flowers.
   [WordNet 1.5]