Tongue orchid

Tongue orchid or tongue-orchid is a common name for several plants and may refer to:
 * Bulbophyllum fletcherianum
 * Dendrobium linguiforme
 * Serapias, genus of tongue-orchids
 * Serapias lingua, Tongue-orchid
 * Serapias cordigera, Heart-flowered tongue-orchid
 * Serapias neglecta, Scarce tongue-orchid
 * Serapias parviflora, Small-flowered tongue-orchid
 * Cryptostylis, genus
 * Cryptostylis leptochila, Small tongue-orchid
 * Cryptostylis subulata, Large tongue-orchid
 * Cryptostylis hunteriana, Leafless tongue-orchid
 * Cryptostylis erecta, Tartan tongue-orchid