28. Cotoneaster gracilis Rehder & E. H. Wilson in Sargent, Pl. Wilson. 1: 167. 1912.
细弱栒子 xi ruo xun zi
Shrubs deciduous, 1–3 m tall. First year branches glabrous; branchlets brownish red to grayish brown, terete, slender, initially densely tomentose-villous, gradually glabrescent. Petiole 2–3 mm, white tomentose; stipules caducous, subulate, 2–4 mm, membranous, pubescent; leaf blade ovate to oblong-ovate, 2–3.5 × 1–2 cm, lateral veins 3 or 4 pairs, conspicuously raised abaxially and impressed adaxially, abaxially densely white tomentose, adaxially glabrous or puberulous, base rounded, apex obtuse or acute, rarely emarginate. Corymbs (1–)1.5–2.5 cm, 3–7-flowered; rachis and pedicels pilose; bracts linear, 2–3 mm, pilose. Pedicel 3–6 mm. Flowers 6–7 mm in diam. Hypanthium red, campanulate, abaxially glabrous. Sepals triangular-ovate, 1–2 mm, apex obtuse or ± acute. Petals erect, pink, suborbicular, 2.5–3.5 mm in diam., glabrous, shortly clawed. Stamens 20, slightly shorter than petals. Ovary pubescent apically; styles usually 2, free, not exceeding stamens. Fruit red, obovoid, 5–6 mm in diam., puberulous, pyrenes usually 2. Fl. May–Jun, fr. Aug–Sep.
Mountain regions, slopes, river banks, thickets; 1000--3000 m. Gansu, Henan, Hubei, Shaanxi, Sichuan.