familyPolygonaceae
subfamilyPolygonaceae subfam. Eriogonoideae
genusEriogonum
subgenusEriogonum subg. Eucycla
speciesEriogonum thompsoniae
Difference between revisions of "Eriogonum thompsoniae var. atwoodii"
Great Basin Naturalist 34: 245. 1974.
Common names: Atwood’s wild buckwheat
Synonyms: Eriogonum corymbosum var. atwoodii (Reveal) S. L. Welsh
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|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
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Revision as of 20:08, 24 September 2019
Plants 3–4 dm. Leaf blade linear, 3–8(–10) × 0.2–0.4(–0.6) cm, thinly to moderately tomentose abaxially, margins often slightly revolute. Involucres 2–3 mm. Perianths white or yellow.
Phenology: Flowering Jul–Oct.
Habitat: Red, gypsophilous clay flats and slopes, saltbush, blackbrush, and sagebrush communities
Elevation: 1400-1500 m
Discussion
Variety atwoodii is known only from two locations, one near Fredonia, and a second along the Honeymoon Trail, both in Mohave County. It appears to be an established, albeit rare, variety that probably is the result of past hybridization involving E. thompsoniae var. albiflorum and E. mortonianum. The Bureau of Land Management in Arizona considers Atwood’s wild buckwheat a taxon of special concern.
Selected References
None.
Lower Taxa
None.