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A rhizomatous perennial herb, flowering stems up to c. 50 cm tall, stout, lightly cobwebby, leafy. Leaves mostly radical, rosetted, spreading, up to 40 x 12 cm, oblong to elliptic in outline, narrowed to a petiole-like base, pinnatifid, lobes 10-12 each side, oblong, more or less imbricate, margins irregularly toothed, spinescent, both surfaces sparsely glandular-pubescent or nearly glabrous, stem leaves distant, up to 15 x 4 cm, decreasing in size upwards, lanceolate, lower pinnatifid, upper entire, sessile, base cordate, half-clasping, margins irregularly spinose-toothed. Beads c. 10 cm across the expanded rays, terminal, solitary. Involucral bracts oblong-lanceolate, up to 8 mm broad, tips and margins spiny, minutely and sparsely glandular-pubescent on the backs, sometimes thinly cobwebby as well. Rays and disc bright golden yellow. Achenes c. 1.5 mm long, turbinate, pilose. Pappus scales c. 3-5 mm long, lanceolate, acute.
Perennial herb, 0.2-0.5 m high; rhizomatous, lightly cobwebby, leafy. Leaves mostly radical, rosetted, spreading, oblong to elliptic in outline, narrowed to petiole-like base, pinnatifid, spinescent, both surfaces sparsely glandular-pubescent or nearly glabrous, margins irregularly spinose-toothed. Capitula terminal, solitary; involucral bracts oblong-lanceolate, apex and margins spiny, minutely and sparsely glandular-pubescent on the backs, sometimes also thinly cobwebby. Ray florets bright golden-yellow. Disc florets bright golden-yellow. Flowering time Nov.-Jan. Pappus of lanceolate, acute scales. Cypselae turbinate, pilose.
