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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Doronicum

2. Doronicum calotum (Diels) Q. Yuan, Acta Bot. Yunnan. 30: 439. 2008.

西藏多郎菊 xi zang duo lang ju

Cremanthodium calotum Diels, Bot. Jahrb. Syst. 36(Beibl. 82): 105. 1905; Doronicum limprichtii Diels; D. thibetanum Cavillier.

Rhizomes procumbent or ascending, stout, ca. 1 cm in diam., tuberous, sometimes short and slender. Stem solitary, erect, green or sometimes purple tinged, (6-)10-75 cm tall, simple, densely villous, yellow-brown, with intermixed short glandular hairs, more densely so below capitula, part of stem leafy. Radical leaves often withered by anthesis, long petiolate; petiole 2-4 cm, dilated at base; leaf blade obovate-spatulate or oblong-elliptic, 4-15 × 1.5-3.5 cm, submembranous, base attenuate into narrow or broad petiole, apex obtuse or rounded. Stem leaves dense or lax, usually up to apex of stem; lower leaves ovate-oblong or oblong-elliptic, base narrowed into 2-4 cm broadly winged petiole, margin ciliate. Capitula solitary, terminal, large, 5-6(-7) cm in diam. Involucre hemispheric, 3-3.5 cm in diam.; phyllaries 2- or 3-seriate, equal; outer phyllaries lanceolate or linear-lanceolate, 15-18 × 1.5-2.2 mm; inner phyllaries linear-lanceolate or linear, 1-1.5 mm wide, densely pubescent and shortly glandular hairy, apically narrowly lanceolate. Ray florets yellow, 2.2-2.8 cm, with ca. 3 mm tube, glabrous; lamina oblong-linear, 1.8-3 mm wide, 3- or 4-veined, apically 3-denticulate. Disk florets yellow, 4.5-5 mm, with 2-2.5 mm tube and campanulate limb, 5-lobed, lobes ovate-triangular, apically acute; anthers 1-1.5 mm, basally obtuse; style branches 2-fid, apex obtuse or truncate. Achenes cylindric, 1.5-2 mm, 10-ribbed, sparsely puberulent on ribs. Pappus present in all achenes, numerous, yellow-brown, 5-5.5 mm, scabrid. Fl. Jul-Sep.

● Alpine grasslands, thickets, stony slopes; 3400-4200 m. Qinghai, S Shaanxi (Qin Ling), SW and W Sichuan, Xizang, NW Yunnan.


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