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

17. Youngia wilsonii (Babcock) Babcock & Stebbins, Publ. Carnegie Inst. Washington. 484: 79. 1937.

栉齿黄鹌菜 zhi chi huang an cai

Crepis wilsonii Babcock, Univ. Calif. Publ. Bot. 14: 331. 1928.

Herbs 13-40 cm tall, perennial, ± rosulate. Caudex with residues of old leaf bases. Stems solitary or few, erect to curved-erect, branched from middle third or higher, glabrous. Rosette leaves and lower stem leaves oblanceolate, 5-10 × 1-2.5 cm, undivided or pinnatifid to pinnatipartite, margin sharply sinuate-dentate; lateral lobes 4-6 pairs, opposite to obliquely opposite and usually with a pair of teeth between them, broadly to narrowly triangular, apex acute; terminal lobe linear to narrowly triangular, apex acute to acuminate. Middle and upper stem leaves linear, reduced in size. Synflorescence corymbiform, with several to many capitula. Capitula with 9-14 florets; peduncle usually 0.5-3 cm, very slender, arcuate. Involucre narrowly cylindric, 7-9 mm. Phyllaries abaxially glabrous; outer phyllaries ovate, longest 1-2 mm, apex acute to obtuse; inner phyllaries 8, margin white scarious, adaxially glabrous, midvein subapically plane, apex acute to obtuse. Anther tube greenish. Style branches yellow upon drying. Achene pale brown, subfusiform to columnar, 3-3.5 mm, ribs finely spiculate, apex attenuate. Pappus white, 4-5 mm. Fl. and fr. Jun-Sep.

● Grasslands; ca. 1500 m. Chongqing (Chengkou), Henan, Hubei.

See note under Youngia kangdingensis.


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