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

3. Doronicum gansuense Y. L. Chen, Acta Phytotax. Sin. 36: 73. 1998.

甘肃多郎菊 gan su duo lang ju

Doronicum cavillieri Álvarez Fernández & Nieto Feliner.

Rhizomes erect or ascending, slender, clad in persistent brown petiole bases. Stem solitary or rarely with stoloniferous branches, green, erect, 10-20 cm tall, simple, glabrous, or upper part especially below capitula yellow-brown glandular hairy. Radical and stoloniferous leaves long petiolate; petiole 3.5-7.5 cm, slender, not winged; leaf blade obovate-oblong, ca. 2.5 × 1.5-2 cm, base slightly cordate, apex rounded. Lower stem leaves with petiole dilated at base; blade obovate or obovate-spatulate, ± membranous, base narrowed into ca. 2 cm winged petiole, apex rounded or obtuse. Median and upper leaves sessile, ovate to ovate-oblong, 2.5-4 × 1-2.5 cm, both surfaces glabrous or sparsely puberulent, base cordate, semiamplexicaul, margin apically entire or rarely inconspicuously denticulate, ciliate, apex obtuse or rounded. Capitula solitary, terminal, 3-5 cm in diam. Involucre hemispheric or broadly campanulate, 1.5-2 cm in diam.; phyllaries 2-seriate, green, subequal, herbaceous; outer phyllaries narrowly lanceolate, 10-13 × 1.5-1.8 mm; inner phyllaries linear-lanceolate, 1-1.3 mm wide, abaxially laxly or densely white hairy, apex acuminate. Ray florets 1.8-2.3 cm, with ca. 2 mm tube, glabrous; lamina yellow, 16-20 × 1.5-2 mm, 4-veined, apically 3-denticulate. Disk florets yellow, 4.5-5 mm, with ca. 2 mm tube and campanulate limb; lobes ovate, ca. 1 mm; anthers obtuse at base; style branches apically truncate. Achenes cylindric, ca. 2 mm, ribbed, gla-brous. Pappus present in all florets, yellow-brown, 3-4 mm, scabrid. Fl. Jul-Aug.

● Grassy slopes, forest understories; ca. 3100 m. Gansu.


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