中亚多郎菊 zhong ya duo lang ju

Doronicum oblongifolium Candolle var. leiocarpum Trautvetter.

Rhizomes horizontal or oblique, ca. 1 cm in diam. Stem solitary, erect, striate, green, 25-80 cm tall, simple, with scattered, orbicular, glandular hairs, sometimes subglabrous in lower part. Leaves with both surfaces glabrous or adaxially and marginally sparsely hairy, margin entire or finely and sparsely toothed, base attenuate, apex obtuse or rather acute. Radical leaves withered by anthesis or present, obovate-spatulate or suborbicular, 4-11 × 4-6.5 cm, abruptly or gradually narrowed into a winged petiole 4-10(-15) cm. Stem leaves 4-6, oblong-ovate or oblong, rarely ovate, 3-11 × 1.5-4 cm, sessile or with broadly winged short petiole, semiamplexicaul. Upper leaves smaller, ovate or ovate-lanceolate, rarely linear-lanceolate. Capitula solitary with ray florets 5-6 cm in diam. Involucre hemispheric, (2-)2.5-3 cm in diam.; outer phyllaries lanceolate or lanceolate-linear, 12-17 × (1.5-)1.8-2 mm; inner phyllaries linear, 1-1.5 mm wide; all phyllaries abaxially and marginally sparsely or densely glandular pubescent, apically long acuminate. Ray florets yellowish, 1.8-3 cm, with ca. 2.5 mm tube, outside densely glandular hairy; lamina 1.5-2 cm × 2-2.8 mm, 4- or 5-veined, apically finely (2 or)3-toothed. Disk florets 5.5-7 mm; corolla dark yellow, with 2.5-3 mm tube and campanulate limb, lobes ca. 1 mm; anthers ca. 1.5 mm, basally entire, antheropodium cylindric. Achenes heteromorphic, brown; marginal achenes smooth, 3-4 mm, pappus absent; achenes in disk florets 3-3.5 mm, glabrous or scattered appressed puberulent, pappus of numerous serrate bristles, white, 3-3.5 mm. Fl. Jun-Aug.

Slopes, understories of Picea forests; 1900-2700 m. Nei Mongol, N Xinjiang [Kazakhstan, Mongolia, Russia (Siberia)].