Fibrous-rooted annual. Stems ascending to erect, often branched above, 10–30 cm. Herbage villous to hirsute, stipitate-glandular. Leaves basal and cauline, alternate, winged-petiolate; blades oblanceolate to ovate, dentate; basal sometimes runcinately lobed, 5–10 cm long. Inflorescence open-paniculate. Heads ligulate; involucres narrowly campanulate, 5–7 mm high; phyllaries 8 to 10 in 1 series, linear-oblanceolate, subequal, glabrous; receptacle flat, naked. Ray flowers 8 to 15, perfect; ligules whitish, 3–5 mm long, green-tipped. Pappus absent. Achenes fusiform, glabrous, many-ribbed, 3–5 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).