australis
orientalis
bilocularis
cylindrocarpa
filiformis
marina
patentifolia
preissii
Ref:
A new delimitation of the Afro-Eurasian plant genus Althenia to include its Australasian relative, Lepilaena (Potamogetonaceae) – Evidence from DNA and morphological data
https://www.sciencedirect.com/science/article/abs/pii/S1055790316000464
