Trifolium amoenum, known by the common names showy Indian clover[1] and two-fork clover, is endemic to California, and is an endangered[2] annual herb that subsists in grassland areas of the San Francisco Bay Area and the northern California Coast Ranges.

This wildflower has an erect growth habit and is typically found on heavy soils at elevations less than 100 meters.

Edward Lee Greene collected the first recorded specimen of this plant in 1890 in Vacaville, California (in Solano County).

By 1993 Trifolium amoenum was thought to be extinct, after the population in Vacaville, California depleted, but was rediscovered[5] by Peter Connors in the form of a single plant on a site in western Sonoma County.

[7] Presently there is only a single extant population, subsequently discovered in 1996 in northern Marin County, which numbers approximately 200 plants.