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

89. Taraxacum protractifolium G. E. Haglund, Bot. Not. 1938: 311. 1938.

长叶蒲公英 chang ye pu gong ying

Herbs to 25 cm tall, subrobust. Petiole purplish, winged; leaf blade grayish green with a pinkish midvein, oblanceolate to broadly linear, 10-18 × 2.5-5 cm, subglabrous, regularly deeply lobed; lateral lobes 3-6 pairs, triangular, ± patent, apical margin concave and entire or minutely dentate, apex acuminate; terminal lobe triangular, apex subobtuse. Scapes brownish green, ± equaling leaves, apically arachnoid when young. Capitulum ca. 4 cm wide. Involucre 1.1-1.5 cm wide, base broadly rounded. Outer phyllaries 15-19, ± imbricate, ovate to ovate-lanceolate, outermost ones 8-11 × 3-4.5 mm and ca. 1/2 as long as inner ones, loosely appressed to erect, usually not distinctly veined, middle part blackish green, border whitish pale green and to 1 mm wide, margin glabrous, not corniculate below apex; inner phyllaries 1.7-1.8 cm. Ligules deep yellow; outer ligules outside striped purplish; inner ligules with pinkish apical teeth; floret tube pubescent. Stigmas greenish. Anthers polliniferous; pollen grains irregular in size. Achene 4.2-4.5(-5) × 0.9-1 mm; body sparsely tuberculate to smooth at base, subdensely spinulose below cone, apically ± gradually narrowing into a 0.8-1 mm subcylindric cone, spinules distinct, thin, straight, and acute; beak ca. 9 mm. Pappus white. Fl. early summer. Agamosperm.

● Grasslands. SW Xinjiang.


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