''Nymphoides macrospermum'' is a critically endangered aquatic plant of the family
Menyanthaceae endemic to
Alwaye in
Kerala,
India. It is an annual herb which has been observed in paddy fields, lagoons and slowly flowing streams.
It is
dioecious
Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ...
, with male and female flowers on separate plants.
References
macrospermum
Flora of Kerala
Dioecious plants
{{Asterales-stub