Ruppia megacarpa
Ruppia megacarpa is a submerged herb species in the genus Ruppia found in shallow brackish waters. It is a common on Australasian coasts, including Australia. Isolated populations have been currently found in East Asia, including Japan, Korea, and Far East Russia, hence, the species distribution exhibit latitudinally disjunct distribution between East Asia and Australasia.Ecology
This species is known to have hybridized with 'Occidentalis' of the R. maritima complex in Hokkaido, Japan.
