All Floras      Advanced Search
FNA Vol. 5 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 5 | Polygonaceae | Eriogonum

53a. Eriogonum rosense A. Nelson & P. B. Kennedy var. rosense

Mt. Rose wild buckwheat

Eriogonum ochrocephalum S. Watson var. agnellum Jepson; E. ochrocephalum subsp. agnellum (Jepson) S. Stokes

Plants 0.2-1 × 0.5-1.5(-2) dm. Leaf blades oblanceolate to elliptic, 0.4-1.5(-1.7) × (0.15-)0.25-0.6(-1) cm, densely white-tomentose and glandular on both surfaces. Involucres turbinate to turbinate-campanulate, (2.5-)3-4(-4.5) × 2.5-3.5 mm; teeth (5-)6-8. Flowers 2-3 mm; perianth bright yellow to reddish yellow; tepals obovate. Achenes 1.5-2.5 mm. 2n = 40.

Flowering Jul-Sep. Granitic or volcanic slopes and ridges, sagebrush communities, montane to alpine conifer woodlands; (2300-)2500-4000 m; Calif., Nev.

Variety rosense is common in the Sierra Nevada (Alpine, Amador, El Dorado, Fresno, Inyo, Madera, Mono, Nevada, Placer, Shasta, Sierra, and Tuolumne counties) and higher desert ranges to the east in Carson City, Douglas, Esmeralda, Storey, and Washoe counties, Nevada. It is an excellent rock-garden plant.


Related Objects  
  • Distribution Map
  • Map

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |