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

36. Taraxacum roseoflavescens Tzvelev, Novosti Sist. Vyssh. Rast. 24: 217. 1987.

二色蒲公英 er se pu gong ying

Herbs 5-12 cm tall, slender. Petiole pink or pale green, narrow; leaf blade mid-green, linear-oblanceolate, usually 5-7 × 0.6-0.9 cm, subglabrous, margin subentire to shallowly lobed; lateral segments in 3 or 4 pairs, recurved, distal margin sinuate and downward pointing; terminal lobe often elongated. Scapes pale brownish green, slightly overtopping or equaling leaves, subglabrous or arachnoid below capitulum. Capitulum 2-3 cm wide. Involucre blackish, 8-10 mm wide, base rounded. Outer phyllaries 10-14, blackish green, ± not imbricate, lanceolate to narrowly lanceolate, outermost ones 5-6 × 1.5-2.2 mm and 2/5-1/2 as long as inner ones, appressed, ± glabrous, paler border absent, apex flat or corniculate; inner phyllaries blackish green, 1.2-1.4 cm. Ligules pale yellow; outer ligules flat, outside striped (grayish) pink; inner ligules with blackish red 0.5-1 mm teeth. Stigmas dark greenish. Anthers polliniferous; pollen grains irregular in size. Achene (only unripe available) spinulose apically. Pappus white, ca. 6 mm. Fl. summer. Agamosperm.

● Moist places, near streams; ca. 4300 m. Qinghai.

Taraxacum roseoflavescens is known from the type specimens only.


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