Herbs 12-20(-25) cm tall. Petiole usually faintly purplish to purple at base, unwinged; leaf blade mid-green to light green, narrowly oblanceolate, 12-15 × 1.3-2.5 cm, arachnoid, margin deeply dissected; lateral lobes 6-10 pairs, linear, ± patent, sometimes slightly bent upward or downward, often ± wider at base where divided into sharp linear lobules or teeth; interlobes 5-12 × 1.5-2 mm, margin with numerous usually patent linear acute lobules and/or teeth; terminal lobe 3-partite, apical segment linear and apex acute; late summer leaves with broader linear lobes to 8 mm wide. Scapes greenish brown, arachnoid but more densely arachnoid below capitulum. Capitulum 2-3 cm wide. Involucre 0.9-1.1 cm wide, base rounded. Outer phyllaries 14-18, yellowish green to green and usually slightly suffused pinkish, ± imbricate, lanceolate to broadly lanceolate but inner ones more narrowly so, outermost ones 5-7(-8.5) × (1.8-)2.5-2.8 mm and 2/5-3/5 as long as inner ones, appressed, later ± erect, with whitish 0.2-0.3 mm border more distinct in apical part and often pinkish, margin arachnoid ciliate, apex initially ± flat to minutely corniculate but corniculate in later flowering capitula; inner phyllaries 1.2-1.4 cm, apex ± corniculate. Ligules yellow; outer ligules flat, outside striped gray to grayish pink; inner ligules with reddish apical teeth. Stigmas pure yellow to pale grayish yellow. Anthers polliniferous; pollen grains irregular in size. Achene pale grayish straw-colored, 4.2-4.7 × ca. 0.8 mm; body apically subsparsely to ± densely spinulose, ± gradually narrowing into a subcylindric 0.8-1 mm cone; beak 8-9 mm, thin. Pappus white, 6-7 mm. Fl. spring and summer. Agamosperm. 2n = 24.
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