棉毛鸦葱 mian mao ya cong

Herbs 5-15 cm tall, perennial, rosulate. Rootstock dark brown, ca. 2 cm in diam. Caudex woody, globose to subglobose, simple or branched, densely covered with scarious entire adaxially abundantly dirty white lanate leaf sheath residues. Stems single or to 5(-7), ascending-erect, unbranched, arachnoid villous, glabrescent. Rosette leaves ovate to spatulate or elliptic, (3-)5-17 × (1-)2-3[-5] cm, somewhat arachnoid hairy, base attenuate, apex rounded, obtuse, or acute. Stem leaves 1-3, sessile, ovate to lanceolate, 0.5-2 × 0.3-1.5 cm, ± leathery, somewhat arachnoid hairy, glabrescent, or glabrous, base cordate and semiamplexicaul. Capitulum solitary. Involucre broadly campanulate to subglobose, usually 1.6-2 × 1.2-1.5 cm at anthesis, to 2.5 × > 2 cm in fruit. Phyllaries abaxially arachnoid hairy; outermost phyllaries broadly ovate to broadly lanceolate. Florets yellow. Achene pale yellow, cylindric, 7-9 mm, with tuberculate ribs, apically sparsely villous. Pappus white, 1-1.5 cm. Fl. and fr. May-Aug.

Gravelly deserts, sandy soils, alluvial plains; 1100-1500 m. Nei Mongol, ?Ningxia [Mongolia].