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Annual herb, up to 1 m high. Leaves alternate, sessile; blade up to 60 x 8 mm, often pinnatipartite with 1 or 2 pairs of lateral lobes, apex obtuse, mucronulate, base narrowed, half-clasping, not auriculate at base; blade of upper leaves simple, oblong or oblong-obovate, margins entire, rough-hairy or glabrous. Heads minutely radiate (disciform), small, many in compact, corymbose clusters. Involucral bracts biseriate, pilose or glabrous. Flowers: ray florets female, fertile, in several series; disc florets bisexual; both bright yellow; Oct.-May. Fruit with cypsela elliptic, slightly compressed, faintly ribbed, appressed-pubescent. Pappus uniseriate, of short, scabrid bristles.
Annual herb, up to 1 m high. Leaves often pinnatipartite with 1 or 2 pairs of lateral lobes, sometimes simple, not auriculate at base. Stems and leaves mostly rough hairy. Flowers bright yellow.
