Variations 
var. argus
This perennial produces almost glabrous leaves with bright yellow flowers and is found in a restricted region of the Klamath Mountains.

var. furcosum
This low growing shrub is naturally found in the Sierra Nevada region.

var. glaberrimum   	Green Buckwheat
This almost glabrous shrub produces pure white flowers.

var. humistratum		Mt Eddy Buckwheat
This small shrub is found in northern California but is rare in its natural habitat.

var. juniporinum		Juniper Buckwheat
This small shrub is found in eastern California and western Nevada but is rare in its natural habitat.

var. subalpinum		 Sulphur Buckwheat
This variety is similar to the species but has wide spathulate leaves.

var. torreyaum		Donner Pass Buckwheat
This small shrub is found near Donner Pass but is very rare in its natural habitat.

var. vericolor
This plant is similar to the species but produces pinkish brown striped flowers.