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

100. Taraxacum glabrum Candolle, Prodr. 7: 147. 1838.

光果蒲公英 guang guo pu gong ying

Herbs 6-20 cm tall, base glabrous. Petiole purplish, to 10 cm, very narrow, glabrous; leaf blade deep green with a purplish midvein, oblong-spatulate, 2.5-8 × 0.8-1.9 cm, glabrous, undivided, margin entire or remotely sinuate-dentate, apex subobtuse to obtuse; teeth 1-3 pairs, apex obtuse. Scapes brownish green, ± equaling but later overtopping leaves, glabrous. Capitulum 3-4 cm wide. Involucre 7-10 mm wide, base rounded. Outer phyllaries 13-18, dark blackish green, ± not imbricate, ovate-lanceolate to narrowly lanceolate, outermost ones 5-7 × 1.9-2.6 mm and ca. 1/3 as long as inner ones, erect to patent, paler border not developed, margin glabrous, apex subacute and ± flat; inner phyllaries 1.2-1.5 cm, ± flat near apex. Ligules deep yellow; outer ligules outside faintly striped grayish green; inner ligules with dark apical teeth. Stigmas grayish green. Anthers polliniferous; pollen grains irregular in size. Achene grayish light brown, 4.8-5.5 × ca. 0.8 mm; body smooth, very gradually narrowing into subcylindric to a cylindric (0.6-)0.8 × ca. 0.3 mm cone; beak 5-7 mm. Pappus yellowish white, 5-6 mm. Fl. summer. Agamosperm. 2n = 24.

Wet mossy subalpine to alpine sites, vicinity of springs; 1600-3000 m. N Xinjiang [Kazakhstan, Mongolia, Russia (Altai)].


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