Leaf blades 2.5-10 cm, faces minutely strigoso-hirsutulous to villoso-hirsute and stipitate-glandular (hairs ca. 0.1 mm). Peduncles 2-22 cm. Paleae ca. 4 mm. Ray corollas 6-17 mm, laminae broadly elliptic, apices 3-toothed. Disc corollas 2.5-2.7 mm. Cypselae 3-4.5 × 2-2.5 mm.
Fibrous-rooted perennial to 5 dm, often beginning to fl when very small; stems glandular and spreading-villous; lvs ovate to suborbicular, hairy, long-petiolate, crenate, 2.5-
10 נ1.5-6 cm, the middle and upper generally deltoid or cordate at base; heads few or solitary on slender terminal and axillary peduncles, the disk 7-10 mm wide; outer invol bracts villous like the stem; rays ca 5, broad, 7-15 mm; 2n=16, 32. Woods, s. Pa. and se. O. to Fla. and Miss. Mar.-July. Ours is var. virginianum.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.