Speedy weed

Flaveria australasica

Annual herb 5–50 cm high; stems erect and dichotomously branched above, smooth, glabrous.
Leaves lanceolate to narrow-elliptic, 1–5 cm long, 4–10 mm wide, apex acute, margins entire or shallowly toothed; lower leaves sometimes shortly petiolate.
Compound heads terminal or axillary with 4–6 leaf-like general involucral bracts longer than the head clusters; partial heads 10–25; involucral bracts of partial heads 3–4 mm long, bracts 2 or 3, elliptic, obtuse, inrolled. Ray florets solitary or absent, with a ligule c. 1 mm long, yellow. Disc florets tubular, 1–5, rarely absent from outermost heads, yellow.

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