Anacyclus australis Sieber ex Sprengel, Syst. Veg. 3: 497. 1826

Annuals, 2–10(–25+) cm. Stems branched ± throughout, ± strigillose to villous, glabrescent. Leaves petiolate or sessile; blades obovate to spatulate, 2–3-pinnately lobed (ultimate lobes narrowly spatulate to linear), (1–)2–3(–6) cm. Involucres 3–4(–6) mm diam. Phyllaries 13–22+ in 2–3 series, subequal (apices brown). Ray florets 0 (peripheral pistillate florets 8–80+ in 1–3+ series; corollas 0). Disc corollas ochroleucous to pale yellow, 0.5–0.8 mm. Cypselae: outer stalked, 1–1.2 mm, ± winged, faces ± papillate; inner sessile, 0.8–1 mm, not winged, not papillate. 2n = 36, 40.

Flowering Jan–Sep. Disturbed sites; 0–800 m; introduced; Ariz., Calif., Fla., Maine, Oreg., Tex.; Australia; also introduced in Northern Hemisphere: Mexico (Baja California); South America; Africa.