Eriophyllum wallacei is a North American flowering plant in the daisy family known by the common names woolly daisy and woolly easterbonnets. It grows in the southwestern United States (Arizona, Utah, Nevada, and California, with an isolated population in Wyoming) and northwestern Mexico (northern Baja California). Eriophyllum wallacei is a small, squat annual herb rarely more than 15 cm (6 in) tall. It may grow in clumps or on short erect stems in sand, rocks, and gravel. The plant is covered in masses of white cotton-candy-like wool. It has small oval leaves less than 2 cm (1 in) long. It produces flower heads one per stem, each head with florets 5-10 yellow or cream-colored ray florets, sometimes with red veins. These surround 20-30 yellow disc florets.