polygamian

As a noun terms

is .

As an adjective polygamian is

(botany) polygamous.

In botany terms the difference between polygamia and polygamian

is that polygamia is a name given by Linnæus to file orders of plants having syngenesious flowers while polygamian is polygamous.

As a noun polygamia

is a Linnæan class of plants, characterized by having both hermaphrodite and unisexual flowers on the same plant.

As an adjective polygamian is

polygamous.