兜鞘垂头菊 dou qiao chui tou ju

Stem solitary, erect, 20-25 cm tall, 1.5-2 mm in diam. at base, white arachnoid-pilose, distally intermixed yellowish brown pilose. Basal leaves petiolate; petiole to 8 cm, hairy, sheath amplexicaul; leaf blade reniform, 1-1.5 × 1.5-2.7 cm, both surfaces white arachnoid-pilose or adaxially glabrescent, palmately veined, margin regularly denticulate, apex rounded. Stem leaves 2 or 3, smaller distally. Middle stem leaves reniform; petiole enlarged into a cucullate sheath, white arachnoid-puberulent, amplexicaul. Distal stem leaves bracteal, lanceolate to linear. Capitulum solitary, nodding. Involucre hemispheric, 0.9-1 × ca. 2 cm, outside dark brown, glabrous, base hairy; phyllaries 12-24, in 2 rows, oblanceolate, 2-4 mm wide, apex erose. Florets numerous, all tubular, yellow, 5-6 mm; tube 1.5-2 mm; limb campanulate. Achenes brown, obovoid, 3-4 mm. Pappus yellowish brown, as long as tubular corolla. Fl. and fr. Aug.

● Grassy slopes; ca. 3500 m. W Yunnan.