Phaenogam :: Phaenogam (n.) Any plant of the class Phaenogamia.
Phaenogamia :: Phaenogamia (n. pl.) The class of flowering plants including all which have true flowers with distinct floral organs; phanerogamia.
Phaenogamous :: Phaenogamous (a.) Having true flowers with with distinct floral organs; flowering.