butterfly orchid

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several orchids, especially of the genera Encyclia, Oncidium, or Platanthera, having flowers resembling butterflies.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun orchid of Florida and the Bahamas having showy brightly colored flowers; sometimes placed in genus Epidendrum
• noun Mediterranean orchid having usually purple flowers with a fan-shaped spotted or striped rose-red lip
• noun any orchid of the genus Psychopsis: spectacular large tiger-striped orchids
• noun Mexican epiphytic orchid having pale green or yellow-green flowers with white purple-veined lip
• noun any orchid of the genus Oncidium: characterized by slender branching sprays of small yellow and brown flowers; often grown as houseplants