; Hort. Kew., ed. 2 [W.T.Aiton] 5: 197 (1813)
Distribution: almost worldwide in temperate zones (many on islands), especially in Asia, but absent in continental Africa and South America
= Allochilus Gagnep.; Bull. Mus. Natl. Hist. Nat., Sér. 2, 4: 591 (1932)
= Bathiorchis Bosser & P.J.Cribb; Adansonia, Sér. 3, 25: 229 (2003)
= Cionisaccus Breda; Gen. Sp. Orchid. Asclep. 2: t. 8 (1829)
= Cordylestylis Falc.; J. Bot. [Hooker] 4: 74 (1842)
= Elasmatium Dulac; Fl. Hautes-Pyrénées 121 (1867), nom. superfl.
= Epipactis Ség.; Pl. Veron. 3: 253 (1754), nom. rej.
= Eucosia Blume; Bijdr. Fl. Ned. Ind. 415, t. 18 (1825)
= Geobina Raf.; Fl. Tellur. 4: 49 (1836)
= Georchis Lindl.; Numer. List [Wallich] no. 7379 (1832), in Bot. Reg. sub t. 1618 (1833), et Gen. Sp. Orchid. Pl. 495 (1840)
= Gonogona Link; Enum. Hort. Berol. Alt. 2: 369 (1822)
= Leucostachys Hoffmanns.; Verz. Orchid. 26 (1842)
= Orchiodes Trew ex Kuntze; Revis. Gen. Pl. 2: 674 (1891)
= Paorchis M.C.Pace; Brittonia 72(3): 262 (2020)
= Peramium Salisb. ex J.M.Coult.; Contr. U.S. Natl. Herb. 2: 425 (1894)
= Salacistis Rchb.f.; Bonplandia (Hannover) 5: 36 (1857)
= Tussaca Raf.; Précis Decouv. Somiol. 42 (1814), et J. Phys. 89: 261 (1819)
