Youngia atripappa

Primary tabs

Youngia atripappa!Youngia_atripappa_Bc_01.JPG/full/full/0/default.jpg

Common names

Chinese (China): 纤细黄鹌菜 xian xi huang an caiA


Herbs 20–55 cm tall, perennial. Tap root strong, with few lateral roots. Stem solitary, very slender, sinuate to zig-zag, flexuous, erect, branched from middle third, prominently striate, hairy at nodes, otherwise glabrous, leafy. Lower stem leaves oblanceolate, 12–14 × 3–3 cm, both faces finely pubescent with multicellular hairs, base attenuate into a short cuneately winged petiole-like portion, margin coarsely sinuate-dentate, and distantly ciliate with multicellular hairs, apex acuminate. Upper stem leaves similar to lower ones but smaller, 9–10× 2.5–3 cm, elliptic to lanceolate or oblanceolate; uppermost stem leaves linear or subulate,ultimately bract-like. Synflorescence corymbiform, with c. 3–6 capitula. Capitula with ca. 15 florets; peduncle 0.9–1.5 cm, slender, glandular, apically with 1 or 2 bracts. Involucre cylindric, 6–8(–9) mm. Outer phyllaries 6 or 7, broadly ovate, ca. 1 mm, apex acute to obtuse, margin and outer surface densely glandular, inner surface glabrous; inner phyllaries 8, both faces glabrous, midvein subapically crested, margin white scarious, bristly towards apex, apex acute to obtuse, outer surface densely glandular, inner surface glabrous. Anther tube brownish and style branches yellow when fresh, both green to blackish upon drying. Achene dark brown, subfusiform, 3.5–3.6(–4) mm, more attenuate toward apex than base, apex cuspidate, with 5 main ribs and each with two only little weaker secondary ribs, ribs finely spiculate and with glandular hairs. Pappus purplishat anthesis, ultimately grayish, 4–5 mm. Fl.Jun–Sep and fr. Jul–Oct.

based on Shih C. & Kilian N. in Wu Z. Y. & al. (ed.), Flora of China 20–21: 254. 2011, Beijing & St Louis; and Dey S. K. & Maity D. in Taiwaniana 61: 365–366. 2016


Asia-Temperate: China South-Central (Sichuanreported in errorB, Yunnanreported in errorB); TibetnativeA,B Asia-Tropical: East Himalaya (BhutannativeA,C, SikkimnativeA,C,D,E)


Maity D. 2017: Images (3 added).


A. Wu & al., Flora of China 20-21. 2011
B. C. Shih, Flora Reipublicae Popularis Sinicae 80(1). 1997
C. Grierson A. J. C. & Long D. G., Flora of Bhutan 2(3). 2001
D. Dey S. K. & Maity D. in Taiwania 61: 362-368. 2016
E. Hajra P. K., Rao R. R., Singh D. K. and Uniyal B. P., Flora of India 12. 1995