Perennial herb with a slender (1-2 mm diam.), creeping, branching, underground stock, flowering stems solitary, simple, erect to c. 30 cm, slender, wiry, glabrous, leafy in the lower part, becoming pedunculoid upwards. Leaves up to 5 x 1.5 cm, elliptic, apex obtuse to subacute, narrowed below to a flat petiole-like part half-clasping the stem, decurrent, descending to the node below in two ridges, margins callose-crenulate or serrulate, glandular-ciliate, the cilia often continuing down the stem on the two ridges, thick-textured, side nerves scarcely visible, minutely puberulous above, glabrous below except for hairs on the midrib, often suffused purple below; leaves on upper half of stem much reduced, bracteate, few, distant. Heads radiate, solitary or occasionally paired. Involucre turbinate, bracts c. 12-14, 7 mm long, about equalling the disc, glabrous, calyculus bracts few, thinly white-woolly at base of involucre. Rays c. 13, long, spreading, they and the disc bright yellow. Achenes not seen, ovaries glabrous.
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Perennial herb, underground stock slender, creeping, branching. Flowering stem simple, solitary, erect, up to 0.3 m high, slender, glabrous, leafy below. Leaves: lower leaves thick, elliptic, up to 50 mm long, base narrowed, flat, petiole-like, decurrent on stem, margins ± serrulate, glandular-ciliate, ± glabrous both sides, often purplish below; upper leaves few, bracteate. Capitula mostly solitary, radiate, disc and rays bright yellow, rays ± 13, long, spreading; involucre turbinate; bracts 12-14, 7 mm long; calyculus bracts few. Flowering time Feb., Mar. Cypselae cylindrical, ± 3 mm long, ± ribbed, glabrous.
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