Description: Perennial large shrub, round, compact, to 120 cm (47 in.) tall. Stems and branches smooth, not angled. Leaves tomentose, rounded at apex, blade 5 - 15 mm (to 0.6 in.) wide. Inflorescence cymose (broad and flat-topped) throughout with involucres (bracts) dichotomously arranged, tomentose to floccose, flowers bright to pale yellow and showy. Time of flowering: October to November.
Habitat: Fine-textured gypsum soils, occasional sandy or sandy clay soils. These habitat features apply specifically to the Las Vegas populations. Elevations: 579 - 1,170 m (1,900 - 3,839 ft).
Range: Clark County, Nevada, and in Arizona and Utah. In Clark County, this species is largely confined to the Las Vegas Valley area where it is disjunct from the remainder of its range.
Comments: E. corymbosum var. aureum, as listed in the MSHCP, is a misapplied name for the Nevada geographic area; the current variety name is glutinosum. However, recent studies show that the Las Vegas population may be part of the variety nilesii. Las Vegas Valley buckwheat populations have greatly declined due to urban development.