2.9. Pontederia vaginalis Burm.f., Fl. Indica: 80. 1768.

Monochoria vaginalis (Burm.f.) C.Presl ex Kunth, Enum. Pl. 4: 134. 1843.

Gomphima vaginalis (Burm.f.) Raf., Fl. Tellur. 2: 10. 1837.

Monochoria hastifolia C.Presl., Reliq. Haenk. 1(2): 127. 1827, nom. illeg. Lectotype (designated by Cook 1989). INDIA. Ind. Orien., fl., s.dat., W. Roxburgh s.n. (G barcode G00164756!).

Distribution.

Widespread throughout Asia (Afghanistan, Bangladesh, Bhutan, Cambodia, China, India, Indonesia, Iran, Japan, Korea, Laos, Malaysia, Myanmar, Nepal, Pakistan, Philippines, Russia, Sri Lanka, Thailand and Vietnam) and Oceania (Australia, Fiji, Papua New Guinea and Pacific Islands).