Perennial or rarely annual herb 0.1–1 m high, usually much branched; base of stem woody; young branches glabrous.. Leaves linear to elliptic or obovate, 2–12 cm long, 0.1–2.5 cm wide, base attenuate, margins entire to dentate or serrate, apex acute to acuminate, glabrous; basal veins 1–3.. Glomerules solitary and terminal, 9–16 mm in diameter, with 20–50 capitula; phyllaries absent; paleae 2.5–4 mm long.. Florets white, pink or purple, female florets absent; disc florets 8–22, 1.5–2.5 mm long, glandular.. Achenes ellipsoid, obovoid or almost globose, 1–1.5 mm long, slightly hairy, without glands; pappus absent or of short hairs.. Fig. 146 (page 717).
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