Shrubs, 20-100 cm. Stems 1+, erect, branched distally, puberulent, glabrescent. Leaves cauline (mostly clustered distally on stems); alternate; sessile; blades oblong or spatulate to lanceolate (bases cuneate), margins distally toothed or entire, faces glabrous or hirtellous. Heads radiate, borne singly. Involucres hemispheric or broader, 15-20 mm diam. Phyllaries persistent, 30-50+ in ± 4 series, distinct, lanceolate, oblong, obovate, or ovate (not carinate), unequal, margins and apices scarious. Receptacles convex, epaleate. Ray florets 21-34+, pistillate, fertile; corollas white, laminae ± ovate to linear. Disc florets [50-]80-250+, bisexual, fertile; corollas yellow [red or purple], tubes cylindric (not basally dilated, usually gland-dotted), throats ± campanulate, lobes 5, deltate (without resin sacs). Cypselae ± columnar, ribs 8-10 (not winged), faces probably glabrous (pericarps without myxogenic cells or resin sacs); pappi crowns of scales. x = 9.