Eriogonum fasciculatum is a species of wild buckwheat known by the common names California buckwheat and eastern Mojave buckwheat. It is cultivated as an ornamental plant, for planting in native plant, drought tolerant, and wildlife gardens.
Eriogonum fasciculatum is variable in appearance, forming a patchy, compact bramble or a spreading bush approaching 2 metres (6.6 ft) in height and 3 metres (9.8 ft) across. The leaves grow in clusters at nodes along the branches and are leathery, woolly on the undersides, and rolled under along the edges. Flowers appear in dense, frilly clusters which may be anywhere from a few millimeters to 15 cm wide. Each individual flower is pink and white and only a few millimeters across. The plant grows on slopes and dry washes in diverse habitats, including chaparral, coastal sage scrub, grasslands, sagebrush scrub, pinyon-juniper woodland, and creosote bush scrub.