Plants 20–100 cm; caudices branching. Stems 1(–5), erect, simple, glabrous or moderately to densely hispido-villous, sometimes hairs appressed. Leaves: basal and proximal cauline tapering to winged petioles, blades broadly oblanceolate to obovate or elliptic, 35–200 (including petioles) × 15–60 mm, margins serrate or crenate, apices acute, faces sparsely to densely hispido-villous, rarely glabrous; mid and distal cauline sessile, blades elliptic, 15–30 × 5–7 mm, rapidly reduced distally, margins entire. Heads 8–250+ in usually wand-paniculiform arrays of short axillary and terminal racemiform, non-secund clusters, sometimes proximal branches elongated, ascending and bearing short axillary and terminal racemiform clusters. Peduncles 1.5–2.5 mm, hispido-villous to canescent. Involucres campanulate, 4–6 mm. Phyllaries in 3–4 series, appressed, strongly unequal, midribs and tips conspicuously green, margins white, scarious, apices obtuse, glabrous or moderately strigose. Ray florets 6–14; laminae 1.5–4.5 × 0.5–1 mm. Disc florets 6–12; corollas 3–4.5 mm, lobes 0.6–1.2 mm. Cypselae (narrowly obconic) 1–2.5 mm, glabrous; pappi 2.5–4 mm (sometimes distinctly clavate). 2n = 18.
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