Plants 2-3(-5+) dm. Stems glabrous or glabrate. Leaves mostly cauline; blades lance-linear to linear, 3-7+ cm × 2-8+ mm, l/w = 7-15+, abaxially scabrellous (hairs appressed, awl-shaped), resin-gland-dotted, adaxially scabrellous, glabrescent, resin-gland-dotted. Heads in open, corymbiform to paniculiform arrays. Peduncles 12-35 mm. Involucres campanulate to obconic, 6-8 × 6-10 mm. Phyllaries 30-40+ in 4-5 series, puberulent, margins arachno-ciliate, the outer lance-ovate, 2-3 mm, inner lance-oblong to linear-oblong, 6-7 mm, tips acute or rounded-apiculate. Florets 18-25+. Cypselae 2.5-3+ mm; pappi stramineous to whitish, outer scales 25-30, 0.5-1.1 mm, contrasting with 30-40+, 5-7+ mm inner bristles. 2n = 34.

Flowering year-round. Damp, peaty or sandy soils; 0-10 m; Fla.; West Indies (Bahamas).