World Checklist of Selected Plant Families (WCSP)

Umsema mucronata Raf., Med. Repos., ser. 2, 5: 352 (1808).

This name is a synonym.

Accepted Name:	Pontederia cordata L., Sp. Pl.: 288 (1753).
Family:	Pontederiaceae
Original Compiler:	R.Govaerts