Description: Perennial shrub, matted, 5 - 20 cm (2 - 7.9 in.) high. Stems low, glabrous (not hairy), diffusely branched. Leaves narrow, 7 - 8 mm (0.3 in.) long, glabrous, elliptical, tapered at the tip and terminating into a 1-mm spine. Inflorescence with solitary flowers, terminal (rather than axillary). Flower sepals 5, petals 5, white, 7 - 8 mm (0.3 in.) long. Fruit a brown leathery follicle with one seed. Time of flowering: April to June.
Habitat: Pinyon-juniper and sagebrush communities, in limestone and sandstone cliffs, and rocky slopes between 1,930 - 2,130 m
(6,000 - 7,000 ft) elevations.
Range: Endemic to three mountain ranges in the eastern Mojave Desert. Known in Clark County from the Spring Mountains (Mount Potosi, Bridge Mountain) and the Sheep Range. Also known from Clark Mountain in San Bernardino County, California.
Comments: The name smooth dwarf greasebush is more commonly used. Distinguished from var. pungens by the absence of hairs on stems and leaves. This species was formerly known as Forsellesia pungens var. glabra.