Hymenoxys vaseyi

Hymenoxys vaseyi is a species of flowering plant in the daisy family Asteraceae. It is native to the Southwestern United States. The specific epithet vaseyi honors the American plant collector George Richard Vasey who made extensive collections in the region in 1880 and 1881. The species is commonly called Vasey's rubberweed.

Description

Hymenoxys vaseyi is a perennial herb up to tall. One plant can produce as many as 50 flower heads in a branching array. Each head has 8-11 yellow ray flowers and 25-80 tiny yellow disc flowers.

Taxonomy

Hymenoxys vaseyi was first described as Actinella vaseyi by the American botanist Asa Gray in 1882. The type specimen was collected by George Richard Vasey in the Organ Mountains of New Mexico in 1881. The American botanist Theodore Dru Alison Cockerell placed Actinella vaseyi in genus Hymenoxys in 1904., Hymenoxys vaseyi is a widely accepted name.

Distribution and habitat

Hymenoxys vaseyi grows in open areas, generally at the edges of forests at elevations of. It is native to the southwestern United States, primarily in New Mexico with a few populations in extreme western Texas.