butterfly orchid

Any of certain orchids, including Epidendrum tampense of Florida, Habenaria psycodes of eastern North America, and Oncidium krameranum and O. pupilio of tropical America, having showy, brightly colored flowers.

The noun has 5 meanings:

Meaning #1: any orchid of the genus Psychopsis: spectacular large tiger-striped orchids

Meaning #2: any orchid of the genus Oncidium: characterized by slender branching sprays of small yellow and brown flowers; often grown as houseplants
  Synonyms: oncidium, dancing lady orchid, butterfly plant

Meaning #3: Mexican epiphytic orchid having pale green or yellow-green flowers with white purple-veined lip
  Synonyms: butterfly orchis, Epidendrum venosum, Encyclia venosa

Meaning #4: orchid of Florida and the Bahamas having showy brightly colored flowers; sometimes placed in genus Epidendrum
  Synonyms: Encyclia tampensis, Epidendrum tampense

Meaning #5: Mediterranean orchid having usually purple flowers with a fan-shaped spotted or striped rose-red lip
  Synonyms: butterfly orchis, Orchis papilionaceae