Wikipedia
Butomopsis
Butomopsis is a genus of plants in the family Alismataceae. It contains only one species, Butomopsis latifolia ( D.Don) Kunth. native to tropical Africa (from Senegal to Sudan to Mozambique), South Asia ( India, Nepal, Bhutan, Bangladesh), Southeast Asia ( Java, Burma, Laos, Thailand, Vietnam, Yunnan) and northern Australia ( Queensland and Northern Territory).