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Robust, roughly glandular-hairy annual, up to 0.8 m tall. Leaves alternate, glandular-pubescent to subglabrous, lower and middle ones rhomboid, ovate, elliptic to oblanceolate, base tapered into a distinct petiole, often prominently 3-nerved from base, upper ones oblanceolate to sublinear, sessile, auriculate, margin sinuate-dentate to sub-entire. Flowerheads radiate, small, in upper corymbs; ray florets much longer than involucral bracts, yellow to orange; disc florets yellow. Cypselas 4-5 mm long, triangular, 3-winged, with 3 small, apical windows.
Robust, roughly glandular-hairy annual to 80 cm. Leaves oblanceolate, toothed to pinnatifid, the upper clasping. Flower heads radiate, small, yellow. Achenes 4-5 mm long, winged, apical chamber 3-fenestrate.
