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Similar to S. serratuloides DC. (above) except: Stems simple or branching low down, branches stiffly erect, glabrous, closely leafy. Leaves up to 120 mm long, flat, not folded, apical lobe very long, linear to lanceolate, basal lobes sometimes one pair only, margins thickened, serrate or serrulate, teeth not incurved, both surfaces glabrous or almost. Flowering time Mar.-May.
Stems simple or branching low down, branches stiffly erect, glabrous, closely leafy. Leaves up to 12 x 1.5 cm, sometimes very narrow (c. 2 mm), flat, not folded, apical lobe linear to lanceolate, tapering at both ends, basal lobes sometimes reduced to one pair, margins thickened, serrate or serrulate, tips of the teeth not incurved, both surfaces glabrous or nearly so.
Perennial herb, up to 1 m high. Leaves lanceolate to narrowly linear-elliptic, glabrous, margins regularly serrulate. Heads radiate, rays 8-13, involucral bracts 12, 3.0-3.5 mm long. Achenes and ovaries glabrous. Flowers yellow.
