All Floras      Advanced Search
FOC Vol. 20-21 Page 303, 309 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 20-21 | Asteraceae | Taraxacum

82. Taraxacum subcontristans Kirschner & Štepánek, Fl. China. 20-21: 309. 2011.

圆叶蒲公英 yuan ye pu gong ying

Type: China. Xinjiang: "In pascuo, coord. geogr.: 41°49′56″N, 82°24′05″E" [Baicheng Xian 拜城县], 1127 m, May 1999, P. Sekerka, Zhang Dao Yuan & V. Huml s.n., cultivated as JŠ 7374 (holotype, PRA; isotypes, MO, PE, PRA).

Paratypes: China. Xinjiang: ibidem, P. Sekerka, Zhang Dao Yuan & V. Huml s.n., cultivated as JŠ 7376 (PRA); "in populeto culto secundum rivum aquarum, coord. geogr.: 42°04′45″N, 86°34′59″E [corresponding to Yanqi Xian 焉耆县]," 930 m, May 1999, P. Sekerka, Zhang Dao Yuan & V. Huml L23, cultivated as JŠ 7382 (PRA). Xizang: "The city of Lhasa [拉萨市], in the park Lukang [禄康公元] in the center of Lhasa," ca. 3500 m, 23 Jun 2002, M. Štefánek 60, cultivated as JŠ 7848 (PRA).

Plantae agamospermae subrobustae, foliis glaucescenti-viridibus, anguste lanceolatis vel anguste ellipticis, subglabris, irregulariter pinnatisectis, lobis lateralibus 5 vel 6 utrinque, lineari-triangularibus vel anguste triangularibus, patentibus vel recurvis vel sursum curvatis, marginibus distalibus dentatis et lobulatis, interlobiis grosse dentatis vel lobulatis, petiolis alatis, griseo-purpurascentibus, phyllariis involucralibus exterioribus 13 ad 17, olivaceo-viridibus, imbricatis, ovatis usque subrotundatis, laxe adpressis usque erectis, marginibus pallide membranaceo-viridibus 0.2-0.6 mm latis, stigmatibus luteo-viridibus, antheris polliniferis, acheniis 4.5-4.7 mm longis, superne dense spinulosis, in pyramidem subcylindricam 0.9-1 mm longam subabrupte abeuntibus.

Herbs 20-25 cm tall. Petiole grayish purple, winged; leaf blade grayish green, narrowly oblanceolate to narrowly elliptic, 16-20 × 4-5 cm, very sparsely arachnoid, pinnatisect with a complicated irregular pattern, midvein light purplish at base but otherwise light green; lateral lobes 5 or 6 pairs, linear-triangular to narrowly triangular, patent, variously recurved, or curved upward, proximal margin entire, distal margin irregularly dentate and/or lobulate, apex acute; interlobes brownish purple spotted along midvein, to 1.5 cm, margin sparsely coarsely dentate or lobulate; terminal lobe narrowly to broadly triangular, 1.5-3.5 × 3-4 cm, terminal segment narrowly helmet-shaped to lingulate, distal margin concave and with teeth or incisions. Scapes pinkish green at base but otherwise light green, ± overtopping leaves, arachnoid. Capitulum 3-3.5 cm wide. Involucre ca. 1.2 cm wide, base flat to subtruncate. Outer phyllaries 13-17, light brownish olivaceous green suffused brown purplish distally, imbricate, ovate to orbicular-ovate, outermost ones 9-11 × 6-8 mm and 1/2-3/5 as long as inner ones, loosely appressed to erect, border pale green, (0.2-)0.3-0.6 mm wide, and membranous, margin subglabrous, apex flat or corniculate; inner phyllaries 1.3-1.4 cm. Ligules deep yellow; outer ligules flat, outside striped purplish gray; inner ligules with purplish teeth at apex; ligule tube pubescent. Stigmas yellowish green, abaxially blackish pubescent. Anthers polliniferous; pollen grains irregular in size. Achene light grayish straw-colored brown, 4.5-4.7 × 1.1-1.2 mm; body ± winged with prominent lateral ridges, densely spinulose above, subabruptly narrowing into a subcylindric 0.9-1 mm cone; beak 1.1-1.2 cm. Pappus dirty white, ca. 8 mm. Fl. late spring. Agamosperm.

● Montane pastures and shrubby slopes; 900-3500 m. W Xinjiang, S Xizang.


Flora of China @
Browse by
Advanced Search

Flora of China Home




 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |