WordNet (r) 3.0 (2006):

cupflower
    n 1: Mexican evergreen climbing plant having large solitary
         funnel-shaped fragrant yellow flowers with purple-brown
         ridges in the throat [syn: chalice vine, trumpet
         flower, cupflower, Solandra guttata]
    2: any of various plants of the genus Nierembergia having
       upturned bell-shaped flowers [syn: cupflower,
       nierembergia]