Sinosenecio jiuzhaigouensis (Asteraceae, Senecioneae), a new species from Sichuan, China Author Chen, Bin 0000-0003-1822-4486 Eastern China Conservation Center for Wild Endangered Plant Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China & chenbin @ csnbgsh. cn; https: // orcid. org / 0000 - 0003 - 1822 - 4486 chenbin@csnbgsh.cn Author Liu, Ying 0000-0003-0613-837X State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong, China & liuyng 73 @ mail. sysu. edu. cn; https: // orcid. org / 0000 - 0003 - 0613 - 837 X liuyng73@mail.sysu.edu.cn Author Luo, Jian-Xun 0000-0003-4915-808X Sichuan Academy of Forestry, Chengdu 610084, Sichuan, China & jianxunl @ 163. com; https: // orcid. org / 0000 - 0003 - 4915 - 808 X Author Wang, Qi 0000-0001-9740-229X Eastern China Conservation Center for Wild Endangered Plant Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China & huyt 0123 @ foxmail. com; https: // orcid. org / 0000 - 0001 - 9740 - 229 X huyt0123@foxmail.com Author Yang, Qin-Er 0000-0002-6261-0731 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & qeyang @ scib. ac. cn; https: // orcid. org / 0000 - 0002 - 6261 - 0731 qeyang@scib.ac.cn text Phytotaxa 2022 2022-05-03 544 3 289 294 http://dx.doi.org/10.11646/phytotaxa.544.3.3 journal article 55677 10.11646/phytotaxa.544.3.3 3df803f7-556a-4658-9aeb-c3d87e8c1e06 1179-3163 6520244 Key to Sinosenecio jiuzhaigouensis and its two morphologically similar species 1. Leaf blade abaxially densely white lanate; pappus scant, soon deciduous ............................................................. S . cyclaminifolius - Leaf blade abaxially sparsely white tomentose or glabrescent or densely fulvous tomentose; pappus persistent.............................2 2. Rhizomes swollen; leaf blade abaxially sparsely white tomentose or glabrescent; capitula 2–3 cm in diameter ............................... ................................................................................................................................................................................. S . jiuzhaigouensis - Rhizomes not swollen; leaf blade abaxially fulvous tomentose; capitula 4–5 cm in diameter..................................... S. hederifolius