Glab. herb up to 10 dm. tall from stout woody stock; branches ∞, up to 5 mm. diam., grooved. Lvs 5-10 × 1-2.5 cm., glaucous, submembr., oblong-to spathulate-obovate, obtuse to subacute, sinuate-dentate to serrate, narrowed into flat petiole; upper lvs narrower. Capitula up to 1·5 cm. diam. in small corymbs on slender bracteolate pedicels; phyll. linear-oblong, acute, 2-ribbed; ray-florets c. 15, ligules up to 1 cm. long, yellow. Achenes 2 mm. long, grooved, pubescent; pappus-hairs up to 6 mm. long, slender, somewhat flexuous, barbellate.