Eriogonum ovalifolium var. vineum
|Cushenberry buckwheat, Cushenbury buckwheat, wild buckwheat|
The following Participating Institutions are custodians for this species in the CPC National Collection:
Rancho Santa Ana Botanic Garden
The conservation of Eriogonum ovalifolium var. vineum is fully sponsored.
Valerie Soza contributed to this Plant Profile.
Cushenbury buckwheat is a low, densely-matted perennial herb endemic to carbonate deposits on the north side (desert side) of the San Bernardino Mountains (Transverse Ranges) of San Bernardino County, California. Cushenbury buckwheat is a "cushion" plant reaching 10-20 inches (2.5 - 5 dm) in diameter, with round to ovate, silvery white leaves and dense inflorescences of creamy-white flowers, turning red in age, that bloom May through August. It is a federally-endangered plant, and one of five carbonate endemics within this range that are endangered and/or threatened primarily by limestone mining in this region. Most of the carbonate deposits in the San Bernardino Mountains are within active limestone mining claims or mining claims that are being maintained for their potential mineral resources.
Distribution & Occurrence
Cushenbury buckwheat typically grows in open areas of low competition, primarily associated with pinyon-juniper woodlands with flannelbush, manzanita, or blackbush, between 4,600 and 7,900 feet (1,400-2,400 m) in elevation, and on moderate to steep rocky slopes (USFWS 1994, 1997).
|Cushenbury buckwheat is known from 20-160 occurrences, totaling ca. 10,000-13,000 individuals. (The number of occurrences varies depending on the source of information. The San Bernadino National Forest has more current, extensive data available on all known occurrences ~ 160).|
Conservation, Ecology & Research
Gonella, M.P.; Neel, M.C. Characterizing rare plant habitat for restoration in the San Bernardino National Forest. Proceedings: wildland shrub and arid land restoration symposium. Gen. Tech. Rep. INT-GTR-315. Ogden, UT: U.S. Department of Agriculture, F
Mistretta, O.; White, S.D. Introducing Two Federally Listed Carbonate-Endemic Plants onto a Disturbed Site in the San Bernardino Mountains, California. Southwestern rare and endangered plants: proceedings of the third conference; September 25-28; Flagstaf