Wall. Pl. As. Rar. 2 (7): 52, tab. 165. 1831; G. Don, Gen. Syst. 3: 561. 1834; Miq. Fl. Ind. Bat. 2: 259. 1857; Kurz in Journ. Asiat. Soc. Bengal 45: 139. 1876; Hook. f. Fl. Brit. Ind. 3: 196. 1881; Fukuoka in Acta Phytotax. Geohot. 39: 53, fig. 1 G. 1988; C. Puff in Opera Bot. Belg. 3: 268. 1991.
长圆状椭圆形
叶长8-20厘米，宽4.5-15厘米
云南耿马县孟定镇，泰国，缅甸