Youngia pilifera Shih 1995
Creators: name: Liao, Shu-Yuan
name: Chen, You-Sheng
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Youngia
Youngia pilifera

description: Youngia pilifera Shih (1995: 183).
Type: — CHINA. Sichuan Province, Kangding City, Xinduqiao Town, inter frutices (among the shrubs), alt. 3600m, 20 July 1963, K. J. Kuan et W. T. Wang 788 [holotype PE01691403! (Fig. 1A, C); isotypes PE01691402! (Fig. 1B, D), PE01691404!, PE01691405!].
= Youngia kangdingensis Shih (1995: 183), syn. nov.
Type: — CHINA. Sichuan Province, Kangding City, Shade traveled towards the Liubagongshe (now Gonggashan Township entrance), inter frutices alpinos (among alpine shrubs), alt. 3300 m, 26 July 1982, K. Y. Lang et al. 650 [holotype PE01691133! (Fig. 4C, D, E); isotypes PE01691134! (Fig. 4A), PE01691135! (Fig. 4B)].
Description:—Herbs 7–30 cm tall, perennial. Taproot with shoot-bearing lateral roots. Caudex often with residues of old leaf bases. Stem slender, erect, sparsely branched from the base or middle third, almost leafless; branches sericeous below, glabrous above. Basal leaves elliptic, ovate-elliptic, broadly ovate, oblanceolate, or orbicular, 2–5 cm long, 0.6–1.5 cm wide, lyrately pinnatipartite or undivided, sparsely to densely strigose, base attenuate or constricted into a winged petiole-like portion, 1–1.8 cm long, apex rounded to obtuse, lateral lobes in 1–4 pairs, triangular to elliptic, margin entire, apex acute, rounded, or obtuse; terminal lobe elliptic, hastate, or irregularly hastate, much larger than lateral ones, margin entire or retrorsely dentate, apex rounded to obtuse. Stem leaves absent or very few, narrowly elliptic to linear, reduced in size, apex long acuminate. Synflorescence corymbiform to paniculiform-corymbiform, with few to some capitula. Capitula with ca. 10–15 florets. Involucre narrowly cylindric, 8–10 mm long, Phyllaries dark green, 4-seriate, abaxially glabrous; outer phyllaries broadly ovate, 1–1.5 mm long and wide, apex acute to obtuse; inner phyllaries ca. 8, 8–10 mm long, 1 mm wide, adaxially appressed hairy, midvein subapically crested or corniculate, margin white scarious, apex acute to obtuse. Achene brown, fusiform, ca. 3.5 mm long, apex strongly attenuate. Pappus white, ca. 5–5.5 mm long.
Phenology:—Flowering from July to August.
Distribution and habitat:— Youngia pilifera is distributed in western Sichuan, China. It grows mainly on thickets in mountain valleys, moist areas in river valleys at elevation of 2400–4200 m.
Additional specimens examined:— CHINA. Sichuan: Baoxing, Jiajin Shan, 1August 2011, Lu Peng pl20110731 (CDBI0247177); Heishui, Dagu glacier, 101°56.149' E, 32°07.139' N, alt. 2405 m, 17 August 2012, Yu-Lan Peng & Lin-Jin Tong 1188 (CDBI0247051, CDBI0247052); Jiulong, alt. 2828 m, 12 June 2010, Xin-Fen Gao et al. 11779 (CDBI0247390, CDBI0247391). Kangding, 101°34'22.51'' E, 29°57'51.57'' N, alt. 3349–3382 m, 12 July 2017, Yu-Lan Peng et al. THP-KD-1755 (CDBI0252899, CDBI0252900); Kangding, alt. 3200 m, 30 July 1982, K. Y. Lang 754 (PE01691399, KUN353642, paratypes); Kangding, Dongeluo Cun, 101°33.574' E, 29°59.118' N, alt. 3453 m, 27 July 2010, Yu-Lan Peng 387 (CDBI0246947, CDBI0246948); Kangding, Gonggashan Xiang, 101°45'17'' E, 29°31'49'' N, alt. 3390 m, 9 August 2010, Liu Ende et al. 2653 (PE01912929); Kangding, Gonggashan Xiang, 101°45'3.01'' E, 29°35'19.44'' N, alt. 3636 m, 13 August 2017, Wen-Bing Ju & Chen-Chen Zheng THP-KD-6007 (CDBI0240896, CDBI0240897); Kangding, Jiagenba Xiang, 29.825301°N, 101.635578°E, alt. 3550 m, 1 August 2023, Y. S. Chen & S. Y. Liao KD20230907 (IBSC); Kangding, Laoyulin Xiang, 101°55'4.59'' E, 29°52'44.94'' N, alt. 3629 m, 18 August 2017, Wen-Bing Ju & Chen-Chen Zheng THP-KD-6404 (CDBI0252320, CDBI0252321); Kangding, Paoma Shan, 101°58.126' E, 30°03.29' N, alt. 2809 m, 27 July 2010, Yu-Lan Peng 427 (CDBI0246943, CDBI0246944); Kangding, Paoma Shan, alt. 3000 m, 11 July 1934, C. S. Liu 684 (PE01691398, PE01691400, paratypes); Kangding, Pengbuxi Xiang, 101°31'38.14'' E, 29°47'59.10'' N, alt. 3177–3217 m, 13 August 2017, Qi Yu et al. THP-KD-4799 (CDBI0252318, CDBI0252319); Kangding, Sanhe Xiang, 102°15'21.27'' E, 30°20'3.12'' N, alt. 2220–2702 m, 12 June 2017, Yu-Lan Peng et al. THP-KD-1077 (CDBI0252893, CDBI0252894); Kangding, Tagong Xiang, 101°31'22.71'' E, 30°19'9.07'' N, alt. 3348–3745 m, 11 July2017, Qi Yu & Xiao-Xue Zhou THP-KD-4090 (CDBI0252316, CDBI0252317); Kangding, Xinduqiao Zhen, 101°32'29'' E, 30°25'29'' N, alt. 3586 m, 17 August 2015, Jian-Wen Zhang et al. ZJW-3078 (KUN1275329); Kangding, Xinduqiao Zhen, Dongeluo Cun, 30.118588°N, 101.484665°E, alt. 3446 m, 1 August 2023, Y. S. Chen & S. Y. Liao KD20230903 (IBSC); Kangding, Yala Xiang, 101°56'56'' E, 30°09'14'' N, alt. 3380 m, 21 July 2008, Yu-Lan Peng et al. Gaoxf 0496 (CDBI0204456, CDBI0204462, CDBI0247392, CDBI0247393); Kangding, Yala Xiang, 101°57'23.93'' E, 30°04'56.36'' N, alt. 2427–3559 m, 17 August 2017, Qi Yu et al. THP-KD-7045 (CDBI0249215, CDBI0249216, CDBI0252313, CDBI0252314); Kangding, Yala Xiang, 101°57'23.93'' E, 30°04'56.36'' N, alt. 3768–4150 m, 19 June 2017, Yu-Lan Peng et al. THP-KD-1474 (CDBI0252895, CDBI0252896); Kangding, Zhaizi Ping, 102°17'22.50'' E, 30°26'3.13'' N, alt. 3932 m, 3 June 2017, Xin-Fen Gao & Huai-Cheng Li THP-KD-0468 (CDBI0252897, CDBI0252898).
description: Published as part of Liao, Shu-Yuan & Chen, You-Sheng, 2024, Youngia kangdingensis is a new synonym of Youngia pilifera (Asteraceae, Crepidinae), pp. 214-220 in Phytotaxa 664 (3) on pages 215-219, DOI: 10.11646/phytotaxa.664.3.7, http://zenodo.org/record/14517230