Eryngium vaseyi

Eryngium vaseyi is a species of flowering plant in the family Apiaceae. It is endemic to California. The specific epithet vaseyi honors the American plant collector George Richard Vasey (not to be confused with his father George Vasey) who made extensive collections in the region in 1880 and 1881. The species is commonly called Vasey's coyote-thistle.

Eryngium vaseyi
Conservation status
Secure  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Apiales
Family:	Apiaceae
Genus:	Eryngium
Species:	E. vaseyi
Binomial name
Eryngium vaseyi J.M.Coult. & Rose

Description

Eryngium vaseyi is a decumbent to upright perennial herb with spreading branches up to half a meter long. The lance-shaped to oblong leaves may be up to 24 centimeters long. The edges are deeply cut into narrow, sharp-pointed lobes. The inflorescence is an array of somewhat rounded flower heads surrounded by several narrow, pointed bracts with spiny edges. The head blooms in whitish petals.

Taxonomy

Eryngium vaseyi was named and described by the American botanists John Merle Coulter and Joseph Nelson Rose in 1888.^[2] The type specimen was collected by George Richard Vasey along the San Antonio River in Monterey County, California in 1880.^[3] As of January 2025^[update], Eryngium vaseyi J.M.Coult. & Rose is a widely accepted name.^[4][5]

Distribution and habitat

Eryngium vaseyi is endemic to California,^[6] where it is known from vernal pools and similar wet habitat in the Central Valley and certain areas of the Central Coast Ranges and southern California coast.