Echinodorus

Echinodorus (Burhead) is a genus of plants in the family Alismataceae and distributed in the Western Hemisphere. Its scientific name is derived from Ancient Greek echius – rough husk, and doros – leathern bottle, alluding to ovaries, which in some species are armed with persistent styles, forming prickly head of fruit.

Read more about Echinodorus:  Description, Cultivation, Taxonomy