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FNA | Family List | FNA Vol. 5 | Polygonaceae | Eriogonum

125a. Eriogonum marifolium Torrey & A. Gray var. marifolium

Marum-leaf wild buckwheat

Eriogonum marifolium var. apertum S. Stokes

Leaf blades 0.3-1.5 cm. Involucres turbinate, 2-3 × 1.5-2 mm.

Flowering Jun-Aug. Sandy, volcanic or occasionally granitic flats and slopes, mixed grassland, manzanita, and sagebrush communities, montane conifer woodlands; (900-)1100-3100(-3300) m; Calif., Nev., Oreg., Wash.

Variety marifolium occurs in widely scattered locations, often on volcanic peaks, in Washington (Yakima County), Oregon (Crook, Deschutes, Douglas, Hood River, Jackson, Jefferson, Klamath, Lane, Linn, and Marion counties), and north-central California (to Shasta County). The variety is more common in the northern Sierra Nevada (Alpine, Amador, Butte, Calveras, El Dorado, Lassen, Mono, Nevada, Place, Plumas, Sierra, and Tuohumne counties) and west-central Nevada (Carson City, Douglas, and Washoe counties). An isolated population is found on the Pine Forest Range of Humboldt County, Nevada


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