'Catasetum tridentatum' definitions:

Definition of 'Catasetum tridentatum'

From: GCIDE

Monkflower \Monk"flow`er\, n. (Bot.) A name of certain curious orchids which bear three kinds of flowers formerly referred to three genera, but now ascertained to be sexually different forms of the same genus (Catasetum tridentatum, etc.). [1913 Webster]