Diastylopsis

Diastylopsis is a genus of flowering plants in the family Asteraceae, native to the eastern United States. It is a small genus, containing only two known species, Diastylopsis effusa and Diastylopsis virgata. Both species are perennial herbs, growing up to 1 meter in height, and are found in moist, shaded habitats such as stream banks and woodlands.

The genus name Diastylopsis is derived from the Greek words "diastylos" meaning "two-styled" and "opsis" meaning "resembling," referring to the two-styled flowers that resemble those of the genus Diastylis. The species name effusa means "spreading," while virgata means "striped" or "marked," referring to the striped leaves of D. virgata.

The flowers of Diastylopsis are small, yellow, and daisy-like, with a central disk and surrounding ray florets. They are pollinated by insects, and the fruits are small, dry achenes. The genus is of interest to botanists due to its unique floral morphology and its restricted distribution in the eastern United States. Further research is needed to fully understand its ecology and conservation status.