Senecio brevidentatus M.D.Hend.

Perennial herb up to 45 cm tall, rootstock slender, crowned with thin fibrous leaf bases, roots narrowly fusiform, flowering stems simple or rarely branching from the crown, thinly hairy, leafy only at the base, bracteate upwards. Radical leaves spreading flat on the ground or erect, up to 7(-15) x 3.5(-6) cm, elliptic to subrotund, apex obtuse, narrowed to a short, flat petiole-like base, margins thickened, nearly entire to crenulate or denticulate, ciliate, upper surface glabrous or more or less harshly pubescent, lower glabrous or pubescent, lowermost stem leaves more or less spathulate or oblong, base broad, more or less cordate-clasping, otherwise similar to radical, soon passing into lanceolate-acute bracts often eared and somewhat toothed at the base. Heads radiate, solitary or up to c. 18 corymbosely arranged on remotely bracteate peduncles. Involucre campanulate, bracts c. 20, 7-8 mm long, about equalling the disc, calyculus bracts few, lanceolate or oblong-lanceolate, rather thick-textured, margins glabrous or sparsely and minutely ciliate. Rays 8(-13), long and spreading, they and the disc bright yellow. Achenes not seen, ovaries 2.25 mm, villous.