Asystasia coromandelianaNees [family ACANTHACEAE], (1832)-F.T.A. 5: 131, partly (excl. syn. A. calycina Benth. (1849)); Chev. Bot. 499; C. B. Cl. in Fl. Brit. Ind. 4: 493, and in Journ. As. Soc. Beng. 74: 667 (1908), incl. syn. A. parvula of Aké Assi, Contrib. 1: 209, t. 16 (1961), not of C. B. Cl. (1900).
Herb, 1-4 ft. high, very similar to A. calycina Benth. but easily distinguishable from this species by the much smaller calyx.
Widespread throughout the Old World Tropics, introduced into tropical America