Hieracium traillii

Plants 25-60+ cm. Stems proximally glabrous or stellate-pubescent, distally glabrous or stellate-pubescent. Leaves: basal 5-6+, cauline 0(-1+); blades oblanceolate to spatulate, 40-80 × 18-45+ mm, lengths 3-5+ times widths, bases cuneate, margins usually entire, apices rounded to obtuse, abaxial faces piloso-hirsute (hairs 1-3+ mm), adaxial glabrous. Heads 8-12+ in corymbiform arrays. Peduncles stellate-pubescent and stipitate-glandular. Calyculi: bractlets 5-8+. Involucres hemispheric to campanulate, 8-10 (× 6-9) mm. Phyllaries 13-21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well. Florets 30-60+; corollas yellow, ca. 12 mm. Cypselae (black or red-brown) columnar, 3-4 mm; pappi of ca. 40+, stramineous bristles in ± 2 series, 6-7 mm.

Flowering Jun-Aug. Shaley sites; 1000-1300 m; Ky., Md., Ohio, Pa., Va., W.Va.

Similar to no. 14 [Hieracium venosum L.], but more hairy; lvs long-setose over the surface beneath and often sparsely so above, not purple-veined; peduncles avg stouter, densely stellate-tomentose as well as copiously provided with spreading, blackish, gland-tipped hairs; heads avg larger, the invol to 12 mm, conspicuously hairy, with long, eglandular setae, shorter, blackish, gland- tipped hairs, and also some small, stellate hairs. Dry, open woods, often on shale-barrens; mts. of s. Pa. to Va. and W.Va. May-Aug. (H. greenii Porter & Britton, a preoccupied name)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.