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2n = 16

Perennial rosette herb. Lvs all basal, linear to oblong or linear- oblanceolate, simple, usually dentate, sometimes runcinate-pinnatifid, glabrous or with sparse multicellular hairs, especially above, (3)-5-15-(30) × (0.7)-1-1.5-(4.5) cm; terminal lobe narrowly deltoid to oblong, obtuse, truncate at base; lateral lobes triangular, deflexed or recurved, entire or toothed on distal margin; petiole and proximal part of midrib hollow. Scape stout, hollow, usually sparsely cobwebby above, sometimes glabrous, (2)-5-20-(30) cm tall. Capitula 1.5-3-(4) cm diam. Involucral bracts glabrous; outer bracts lanceolate to ovate, ± attenuate, green or reddish, erect at flowering, suberect to patent at fruiting, with scarious margins; inner bracts narrowly triangular to linear, acute, green, erect, with scarious margins. Florets usually golden yellow, rarely paler. Achene body usually orange-brown to dull greenish brown, rarely cream, ribbed, clavate-fusiform, 2.5-4 mm long; ribs each with (3)-5-7 teeth on distal ⅓-⅔, the distal teeth slightly > the proximal; cone tapering or narrowly cylindric, (0.5)-1-2 mm long, concolorous with the body. Beak usually pale, sometimes dark, slender, 4.5-8 mm long. Pappus white, 4-7 mm long.