; Prodr. Fl. Nov. Holland. 479 (1810)
Distribution: pantropics. Species delimitation especially in India and Indochina quite uncertain.
= Adenosma Nees; Pl. Asiat. Rar. [Wallich] 3: 75 (1832), nom. illeg.
= Asteracantha Nees; Pl. Asiat. Rar. [Wallich] 3: 75 (1832)
= Cardanthera Buch.-Ham. ex Benth.; Prodr. [A.P. de Candolle] 11: 67 (1847)
= Eberlea Riddell ex Nees; Prodr. [A.P. de Candolle] 11: 85 (1847)
= Hemiadelphis Nees; Pl. Asiat. Rar. [Wallich] 3: 75 (1832)
= Kita A.Chev.; Rev. Bot. Appl. Agric. Trop. 30: 266 (1950)
= Nomaphila Blume; Bijdr. Fl. Ned. Ind. 804 (1826)
= Oryzetes Salisb.; Monthly Rev. 86: 304 (1818)
= Physichilus Nees; Compan. Bot. Mag. 2: 310 (1836)
= Plaesianthera (C.B.Clarke) Livera; Ann. Roy. Bot. Gard. (Peradeniya) 9: 196 (1924)
= Polyechma Hochst.; Flora 24: 376 (1841)
= Santapaua N.P.Balakr. & Subr.; J. Indian Bot. Soc. 42: 411 (1963)
= Synnema Benth.; Prodr. [A.P. de Candolle] 10: 538 (1846)
= Tenoria Dehnh. & Giord.; Cat. Pl. Horti Camald., ed. 2, 24 (1829)