Plants subshrubs or shrubs, 3–10 dm tall, 3–10 dm across; leaves cauline 1⁄2 or more length of flowering stem, the petioles 0.2–0.6 (0.8) cm long, the blades lanceolate to oblanceolate or elliptic, 1–3 (4.5) cm long, (0.3) 0.5–1.5 cm wide, usually densely tomentose on both surfaces, sometimes less so and greenish adaxially; inflorescences 3–10 cm long, the branches tomentose to floccose; involucres 1.5–3.5 mm long, 1–2 mm wide; flowers 2–3.5 mm long, the perianth white to cream, glabrous. 2n = 40.

Apodemia mormo on Eriogonum corymbosum var. corymbosum.

Inflorescences 3–10 cm long, the branches tomentose to floccose; involucres 1.5–3.5 mm long, 1–2 mm wide; flowers 2–3.5 mm long, the perianth white to cream, glabrous.

Flowering Jul-Oct. Sandy to gravelly or clayey flats, washes, slopes, outcrops, and cliffs, saltbush, blackbrush, and sagebrush communities, pinyon-juniper and montane conifer woodlands; 1200–2700 m; northern Arizona (Coconino, Mohave and Navajo cos.), western Colorado (Garfield, Mesa, Moffat and Rio Blanco cos.), eastern and southern Utah (Carbon, Daggett, Duchesne, Emery, Garfield, Grand, Kane, Sevier, Summit, Uintah, Utah, Wasatch, Washington and Wayne cos.) and in southwestern Wyoming (Sweetwater Co.).

Diversity of leaves in Eriogonum corymbosum var. corymbosum: the blades are lanceolate to oblanceolate or elliptic, 1–3 (4.5) cm long, (0.3) 0.5–1.5 cm wide, usually densely tomentose on both surfaces, sometimes less so and greenish adaxially.

Diversity of leaves in Eriogonum corymbosum var. corymbosum: the blades are lanceolate to oblanceolate or elliptic, 1–3 (4.5) cm long, (0.3) 0.5–1.5 cm wide, usually densely tomentose on both surfaces, sometimes less so and greenish adaxially.