The Collaborative International Dictionary of English v.0.48:

albuca \albuca\ n.
   1. any of various plants of the genus Albuca having large
      clusters of pale yellow flowers; native to South Africa.
      [WordNet 1.5]

WordNet (r) 3.0 (2006):

albuca
    n 1: any of various plants of the genus Albuca having large
         clusters of pale yellow flowers; South Africa