Plants 6–100 cm, self-compatible (heads not showy). Stems prox-imally pilose to hirsute, distally glandular-pubescent, glands yel-lowish, purple, or black, lateral branches seldom surpassing main stems. Leaf blades oblong to linear, 1–10(–15) cm × 1–8(–10) mm. Heads in ± open, paniculiform or racemiform arrays. Involucres depressed-globose to urceolate, 5–10 mm. Phyllaries sometimes hirsute, always finely or coarsely glandular-pubescent, glands yellowish, purple, or black, apices erect or ± reflexed, flat. Paleae mostly persistent, connate 1/2+ their lengths. Ray florets 3–10; corollas lemon yellow or greenish yellow, laminae 1.5–8 mm. Disc florets 2–16+, bisexual, fertile; corollas 2.5–5 mm, pubescent; anthers ± dark purple. Ray cypselae black, purple, or mottled, dull, compressed, beakless (or nearly so). Disc cypselae similar. 2n = 32, 48.
Open or partially shaded slopes or flats in grasslands, meadows, shrublands, woodlands, and forests, disturbed sites, stream banks, roadsides, coarse to fine textured soils, sea level to 2500m.
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