Perennial herb to 38 cm tall; stems ascending, to 0.3 mm diam., glabrous below to sparsely pilose above with hairs to 0.5 mm long. Leaves narrowly ovate to ovate, 3.9-7.5 cm long, 1.9-5.4 cm wide, acute, the base obtuse to slightly attenuate, both surfaces strigillose with hairs 0.1 mm long, the margin serrate; petioles 0.5-3 cm long, 0.8 mm diam. Inflorescence of solitary heads; peduncles 9-14 cm long. Heads radiate, 7-9 mm tall, 15-20 mm across; involucre 9-13 mm diam., biseriate, the outer bracts herbaceous, narrowly ovate to elliptic, 5-6 mm long, 1.3-2 mm wide, obtuse, the abaxial surface strigillose toward the apex with hairs 0.1-0.2 mm long, the inner bracts more scarious and strigillose, but the same size and shape as the outer bracts; paleas narrowly elliptic, 4 mm long, 1.2 mm wide, obtuse, glabrous; ray florets 8-12, the ligules persistent on achene at maturity, yellow above, greenish below, narrowly elliptic, 4-6 mm long, 2.5 mm wide, the tube absent; disc florets over 50, perfect, the corollas yellow, cylindrical, 2.5 mm long, 0.8 mm diam., glabrous, the anthers 5, black. Ray and disc achenes similar, black, triquetrous, 3 mm long, 1.5 mm diam., glabrous; pappus absent. Chromosome numbers n = 14 and 28.
Home
