WordNet sense 1 (orchid having large elliptic to obovate fleshy leaves and fragrant pink-and-white flowers dotted with red):

Phalaenopsis amabilis

WordNet sense 2 (any orchid of the genus Oncidium: characterized by slender branching sprays of small yellow and brown flowers; often grown as houseplants):

oncidium, butterfly orchid, dancing lady orchid