familyPolygonaceae
subfamilyPolygonaceae subfam. Eriogonoideae
genusEriogonum
subgenusEriogonum subg. Eucycla
speciesEriogonum nudum
Eriogonum nudum var. deductum
Fl. Calif. 1: 420. 1914.
Common names: Reduced wild buckwheat
Basionym: Eriogonum deductum Greene Pittonia 5: 71. 1902
Revision as of 21:55, 16 December 2019 by FNA>Volume Importer
Plants 2–3(–5) dm. Aerial flowering stems not fistulose, 0.5–1.5 dm, glabrous. Leaves basal; blade 1–2 × 0.3–0.8(–1) cm, tomentose abaxially, floccose or glabrous adaxially, margins plane. Inflorescences cymose, 5–15 × 5–15(–20) cm; branches glabrous. Involucres 1(–2) per cluster, 2.5–3.5 mm, glabrous or sparsely pubescent. Flowers 2–3 mm; perianth white, glabrous. 2n = 40.
Phenology: Flowering Jun–Sep.
Habitat: Granitic flats and slopes, manzanita, buckbrush, and sagebrush communities, scrub oak and conifer woodlands
Elevation: (1100-)1500-3000(-3200) m
Discussion
Variety deductum is the common mid-elevation tetraploid expression of the species, found primarily in the Sierra Nevada, including some desert ranges just to the east. It is not always readily distinguishable from var. nudum. At higher elevations, var. deductum is replaced by var. scapigerum.
Selected References
None.
Lower Taxa
None.