Homostylium argyropholium var. argyropholium var. argyropholium

2.1.Homostylium argyropholium var. argyropholium Diagnosis. Leaves abaxially densely tomentose or pubescence, secondary veins abaxially not prominent, apex acute or abruptly acute, rarely rounded. Peduncles densely tomentulose. Involucres 4–5 mm. Phyllaries 4 - seriate. The leaves exhibit considerable variation, with apices either obtuse or acuminate. Distribution. Common. China, Sichuan (Damba, Jinchuan, Lixian, Barkham, Xiaojin), and Xizang (Basu). Habitat. Subalpine. Specimens examined. China • Sichuan: Kangding (Tatien-lu), H. Smith 2258 (UPS v- 080214); Danba, Z. X. Fu 2970 (PE), 2971 (PE), 2972 (PE); Jinchuan, Z. X. Fu 2993 (PE), 2994 (PE), 2995 (PE), 2996 (PE), 2997 (PE), 2998 (PE), 2999 (PE), 3001 (PE), X. Li 76624 (PE), 77595 (PE 00275057, PE 00274598), 75154 (PE), 77904 (PE), 75124 (PE), D. Y. Hong et al. 95047 (PE); Lixian, C. S. Cao 193 (PE), 1569 (PE), G. J. Zhang 145 (PE), 146 (PE), Z. X. Fu 3054 (PE), 3055 (PE), 3056 (PE), 3058 (PE); Barkam, T. Y. Chang & H. F. Zhou 23111 (IBSC, KUN), Z. X. Fu 3003 (PE), 3010 (PE), 3011 (PE), 3012 (PE), 3013 (PE), 3015 (PE), 3016 (PE), 3017 (PE), S. Jiang & C. L. Jin 1026 (PE 00275056, PE 01776701, PE 01822231), T. Y. Chang & H. F. Zhou 22631 (PE, KUN, IBSC), 23024 (PE, KUN, IBSC), Z. B. Feng 960306 (HX), G. J. Zhang 148 (PE), 151 (PE), 152 (PE), 153 (PE), T. Y. Chang & H. F. Zhou 23467 (PE, KUN); Xiaojin, Z. X. Fu 2944 (PE), J. Zhou 86 (PE, IBSC), H. N. Qin, S. X. Yu & J. Y. Wu 17087 (PE); • Xizang: Baxoi, J. S. Yang 90-251 (PE).