WordNet (r) 3.0 (2006):

Pithecellodium unguis-cati
    n 1: erect shrub with small if any spines having racemes of
         white to yellow flowers followed by curved pointed pods and
         black shiny seeds; West Indies and Florida [syn:
         cat's-claw, catclaw, black bead, Pithecellodium
         unguis-cati]