familyPolygonaceae
subfamilyPolygonaceae subfam. Eriogonoideae
genusEriogonum
subgenusEriogonum subg. Oregonium
speciesEriogonum luteolum
Eriogonum luteolum var. pedunculatum
Great Basin Naturalist 40: 148. 1980.
Common names: Mokelumne Hill wild buckwheat
Endemic
Basionym: Eriogonum pedunculatum S. Stokes Leafl. W. Bot. 2: 48. 1937
Plants erect, 3–6 dm, glabrous. Aerial flowering stems erect, 0.5–1 dm. Leaves basal or basal and cauline; blade oblong to oblong-ovate. Inflorescences 10–50 cm. Involucres sessile and appressed to branches, rarely on erect peduncles 1–5 mm at proximal nodes, cylindric, 3–3.5 mm. Flowers 1–1.5(–1.8) mm; perianth white. Achenes 1–1.4 mm.
Phenology: Flowering Jun–Oct.
Habitat: Sandy to gravelly serpentine flats and slopes, mixed grassland and chaparral communities, oak and pine woodlands
Elevation: 100-1500(-1950) m
Discussion
Variety pedunculatum is encountered infrequently on the western foothills of the Sierra Nevada in Amador, Butte, Calaveras, El Dorado, Mariposa, Nevada, Placer, Plumas, Sierra, Tulare, and Tuolumne counties. The feature that was the basis for the varietal epithet, a pedunculate involucre, is seen only rarely.
Selected References
None.
Lower Taxa
None.
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