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名称状态：被SP2000收录，状态为：Cotoneaster gracilis var. difficilis为接受名中文名：小叶细弱栒子形态描述：28b. Cotoneaster gracilis var. difficilis (G. Klotz) L. T. Lu, Novon. 12 496. 2002. 小叶细弱栒子 xiao ye xi ruo xun zi Cotoneaster difficilis G. Klotz, Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Naturwiss. Reihe (Beitr. Phytotax. 3) 21 1017. 1972.Leaf blade ovate-elliptic to broadly elliptic, 7–14 × 5.5–8 mm, abaxially tenuously tomentose. Inflorescences 1–3(–6)-flowered.Mountain regions; 1800--3000 m. SE Gansu, W Sichuan. From Flora of China FOC Vol. 9 Page 98国内分布：甘肃,四川