| butterfly orchid | (n) any orchid of the genus Psychopsis: spectacular large tiger-striped orchids |
| butterfly orchid | (n) Mexican epiphytic orchid having pale green or yellow-green flowers with white purple-veined lip, Syn. butterfly orchis, Epidendrum venosum, Encyclia venosa |
| butterfly orchid | (n) orchid of Florida and the Bahamas having showy brightly colored flowers; sometimes placed in genus Epidendrum, Syn. Encyclia tampensis, Epidendrum tampense |
| butterfly orchid | (n) Mediterranean orchid having usually purple flowers with a fan-shaped spotted or striped rose-red lip, Syn. butterfly orchis, Orchis papilionaceae |
| greater butterfly orchid | (n) south European orchid with dark green flowers that are larger and less fragrant than Platanthera bifolia; sometimes placed in genus Habenaria, Syn. Habenaria chlorantha, Platanthera chlorantha |
| lesser butterfly orchid | (n) south European orchid having fragrant greenish-white flowers; sometimes placed in genus Habenaria, Syn. Habenaria bifolia, Platanthera bifolia |
| oncidium | (n) any orchid of the genus Oncidium: characterized by slender branching sprays of small yellow and brown flowers; often grown as houseplants, Syn. butterfly orchid, dancing lady orchid, butterfly plant |