Steve Boyd

Ceanothus ophiochilus is a rare species of flowering shrub known by the common name Vail Lake ceanothus, native to Southern California. It was not described until 1991.

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Lepechinia rossii is a rare species of flowering plant in the mint family known by the common name Ross' pitcher sage. It is endemic to the Transverse Ranges of California on the north edge of the Greater Los Angeles Area. This species was first described to science only in 2006.

Ceanothus bolensis is a species of shrub in the buckthorn family commonly known as the Cerro Bola ceanothus. It is a rare member of the genus Ceanothus endemic to mountains with metavolcanic soils in extreme northwestern Baja California, Mexico. It is named after the Cerro Bola, a basaltic peak where the species is especially common and was first described from.

Boechera yorkii is a rare species of flowering plant in the mustard family known by the common name Last Chance rockcress. It is endemic to Inyo County, California, where it is known only from the Last Chance Range in Death Valley National Park. There are only two occurrences known, but the plant occurs in remote, nearly inaccessible mountain territory, so more plants may exist unobserved. The species was only described to science in 2004. Its habitat is rocky mountain canyons on cliffs of dolomite. This is a perennial herb growing from a tough, woody caudex with a basal rosette of narrow

Streptanthus hammittii is a species of flowering plant known by the common name Hammitt's clay-cress. It is endemic to California, where it is known from two locations in the Peninsular Ranges. The plant is known from the Santa Ana Mountains of Riverside County and Viejas Mountain and nearby peaks east of San Diego. It grows in grassy habitat in openings in chaparral alongside purple needlegrass (Nassella pulchra), generally in moist areas in heavy clay soils. This species and its genus were first described to science in 1997. This is an annual herb producing a waxy, hairless or slightly

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