Flora of North America species comparison

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Eriogonum corymbosum var. velutinum
Photo is of parent taxon

crispleaf buckwheat, velvety wild buckwheat
Habit Shrubs, 5–10 × 8–15(–20) dm.
Leaves

cauline 1/2 or more length of flowering stem;

petiole 0.5–1.5 cm;

blade elliptic-oblong to oblong or ovate, rarely cordate, 1.5–3(–3.5) × (1–)1.5–2.5(–3.5) cm, densely white-tomentose abaxially, densely white- to tan-lanate or less so to brownish-floccose adaxially.
Inflorescences

rather open, 3–10 cm;

branches densely tomentose.
Involucres

2–3.5 × 1.5–2.5 mm.
Flowers

2–2.5(–3) mm;

perianth white to cream, glabrous.

Eriogonum corymbosum var. velutinum
Phenology Flowering Aug–Oct.
Habitat Sandy to gravelly or clayey flats, washes, and slopes, mixed grassland, saltbush, and sagebrush communities, pinyon-juniper woodlands
Elevation 1200-2300 m (3900-7500 ft)
Distribution
from FNA
AZ; CO; NM; TX; UT
[BONAP county map]
Discussion

Variety velutinum is the principal expression of the species in the southeastern portion of the species’ range in northeastern Arizona (Apache County), western Colorado (Mesa, Montezuma, Montrose, and San Miguel counties), northwestern New Mexico (Quay, Rio Arriba, Sandoval, San Juan, Santa Fe, and Socorro counties), and in southeastern Utah (Garfield, Grand, Kane, San Juan, and Wayne counties). The Texas location remains to be confirmed by modern collections. This variety is not always distinct from var. orbiculatum in southwestern Colorado and adjacent southeastern Utah. Plants with cordate leaf blades from Gypsum Valley in San Miguel County, Colorado, assigned here to var. orbiculatum, are particularly difficult to place. Variety velutinum is currently being introduced into cultivation.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 5, p. 257.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Eucycla > Eriogonum corymbosum
Sibling taxa
E. corymbosum var. aureum, E. corymbosum var. corymbosum, E. corymbosum var. glutinosum, E. corymbosum var. heilii, E. corymbosum var. nilesii, E. corymbosum var. orbiculatum, E. corymbosum var. revealianum
Name authority Reveal: Great Basin Naturalist 27: 224, fig. 14. (1968)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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