Trifolium jokerstii

Trifolium jokerstii is a rare species of clover known by the common names Jim's clover^[2] and Butte County golden clover. It is endemic to Butte County, California, where it is known from eight or nine occurrences near Oroville.^[3] It grows in seasonally moist habitat, such as vernal pools, pastures, and ephemeral creeks.^[4] It was previously included within the description of Trifolium barbigerum as an odd yellow-flowered variant of a mostly purple-pink-flowered species, and was elevated to species status in 1998.^[5] It was named for the California botanist Jim Jokerst.^[6]

Trifolium jokerstii
Conservation status
Imperiled  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Genus:	Trifolium
Species:	T. jokerstii
Binomial name
Trifolium jokerstii Vincent & R.Morgan

This is an annual herb with a decumbent or erect, hairless stem. The leaves are made up of oval blades up to about 3 centimeters long which are marked with a white or purplish chevron, and large, lance-shaped, toothed stipules. The inflorescence is a head of at least five golden yellow flowers on a bowl-like base of bracts.