Plants 1-5+ dm. Stems usually erect. Leaf blades obovate to lanceolate, 2-6(-8+) cm × 8-25(-40+) mm. Involucres 8-15+ × 8-15+ mm. Phyllaries 30-50+ in 4-8+ series, glabrous or sparsely tomentulose. Florets 30-60+. Cypselae 1-2.5+ mm; pappi stramineous, 1-3+ mm. 2n = 32, 64.

Flowering year-round. Disturbed places; 0-10+ m; Fla.; Mexico; West Indies; Central America; South America.