familyPolygonaceae
subfamilyPolygonaceae subfam. Eriogonoideae
genusEriogonum
subgenusEriogonum subg. Eucycla
speciesEriogonum strictum
Eriogonum strictum var. greenei
Phytologia 40: 467. 1978.
Common names: Greene’s wild buckwheat
Basionym: Eriogonum greenei A. Gray
Synonyms: Eriogonum niveum var. greenei (A. Gray) S. Stokes
Revision as of 22:26, 26 July 2019 by FNA>Volume Importer
Plants dense mats, 2–10 dm wide. Leaf blades ovate, 0.5–1 cm, densely white-lanate to tomentose on both surfaces. Inflorescences 3–5 cm; branches tomentose. Involucres 4–6 × 2–3 mm, tomentose. Flowers 4–5 mm; perianth white.
Phenology: Flowering Jun–Sep.
Habitat: Rocky, typically serpentine flats, slopes, and ridges, sagebrush communities, montane conifer woodlands
Elevation: 1500-2400 m
Discussion
Variety greenei is restricted to the North Coast Ranges of northwestern California (Humboldt, Mendocino, Siskiyou, Tehama, and Trinity counties). In the herbarium, it is occasionally difficult to distinguish from nonserpentine populations of var. proliferum. The variety is worthy of cultivation.
Selected References
None.
Lower Taxa
None.