Plants 2-8 dm, the stem and generally also the lvs ±spreading-hirsute below, the hairs commonly shorter and more appressed upwards; tufted lower lvs oblanceolate or a little broader, 3.5-15 נ0.5-2 cm (petiole included); cauline lvs quickly reduced and becoming sessile, erect; heads 2-40 in an open-corymbiform, often flat-topped infl; invol campanulate, 7-11 mm, conspicuously viscid-hairy, its 20-40 bracts imbricate, firm, with rather lax or spreading, thick, often callous-pointed, acute or acutish tip; fls 15-30; achenes 3-4 mm; 2n=20. Sandy soil, especially in pine-barrens; se. Va. to S.C. and Ga. Aug.-Oct.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.