Herbs, perennial. Caudexes columnar, often multibranched, brown. Stems caespitose or solitary, erect, 25-80 cm tall, shallowly furrowed, white villous above. Basal leaves petiolate; petiole 1-5 cm; leaf blade pinnatifid, 5-10 cm, with 2-4 pairs of segments, or undivided. Cauline leaves 2-5-paired, subsessile or shortly petiolate; leaf blade 4-10 cm, abaxially densely pubescent, adaxially white villous, pinnatifid to pinnatisect or bipinnatisect, segments unequal in length; ultimate segments lanceolate or linear-lanceolate, 1.5-2 mm wide, 1-veined, apex acuminate. Peduncles 18-30 cm, white villous; capitula solitary, terminal, oblate-spheroidal, 2-2.5 cm in diam. at anthesis, becoming oblong, ca. 1.5 cm in fruit; involucral bracts linear-lanceolate, both surfaces sparsely pubescent, apex acuminate; bracts oblanceolate, sparsely puberulent, apex acute; involucels funnelform, 3-4 mm, 8-ribbed and 8-furrowed, sparsely white villous on ribs and sparsely puberulent in furrows, crown 1.5-2 mm wide, outside sparsely puberulent, edges dentate. Calyx lobes 5, brown-yellow, ca. 4 mm, setose. Corolla yellow or white, 7-10 mm; marginal ray flowers subequal to central ones in size. Corolla tube 6-7 mm, outside densely white villous; lobes 5, unequal in size, middle one of lower lip to 3 mm, others 1.5-2 × ca. 1.5 mm. Stamens 4, inserted at middle part of corolla tube, exserted. Achenes yellowish, ellipsoid, ca. 2.5 mm, setae up to 7 mm; receptacles visible after achenes shed, fusiform, 10-15 × ca. 4 mm, densely puberulent. Fl. Jul-Aug, fr. Aug-Sep. 2n = 16.
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