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FOC | Family List | FOC Vol. 9 | Rosaceae | Cotoneaster

38. Cotoneaster buxifolius Wallich ex Lindley, Bot. Reg. 15: sub t. 1229. 1829.

黄杨叶栒子 huang yang ye xun zi

Shrubs evergreen to semievergreen, low, to 1.5(–3) m tall. Branchlets dark grayish brown or brownish, terete, initially densely whitish tomentose, glabrate. Petiole 1–3 mm, tomentose; stipules caducous, subulate, 2–3 mm, tomentulose; leaf blade elliptic to elliptic-obovate, 5–10(–16) × (2–)4–9 mm, abaxially densely gray tomentose, adaxially initially appressed pubescent, glabrescent, base narrowly to broadly cuneate, apex acute and mucronate, rarely ± obtuse. Inflorescences (1- or)3–5(–9)-flowered; bracts lanceolate, nearly as long as pedicels, tomentose. Pedicel 3–5 mm, tomentose. Flowers 7–9 mm in diam. Hypanthium campanulate, abaxially tomentose. Sepals ovate-triangular, 1.5–2 mm, apex acute. Petals spreading, white, suborbicular or broadly ovate, 3–4 mm in diam., glabrous, base shortly clawed, apex obtuse. Stamens 20, slightly shorter than petals. Ovary pubescent apically; styles 2, free, nearly as long as stamens. Fruit red, subglobose, 5–6 mm in diam., pyrenes usually 2. Fl. Apr–Jun, fr. Sep–Oct.

Mountain regions, rocky mountain slopes, thickets, roadsides; 1000--3900 m. Guizhou, Sichuan, Xizang, Yunnan [Bhutan, India, Myanmar, Nepal].

1 Dwarf shrub to 0.5–1 m tall; pedicel, hypanthium and sepals abaxially initially sparsely villous-tomentose, glabrate; flowers 1 or 2(–4); leaves apically obtuse, rarely ± acute and mucronulate.   38c var. rockii
+ Shrub 1–3 m tall; pedicel, hypanthium and sepals abaxially densely and persistently strigose-tomentose; flowers (1–)3–5(–9); leaves apically mucronate or mucronulate.   (2)
2 (1) Shrub 1–2 m tall; leaves elliptic to elliptic-obovate, 5–10 mm or slightly longer, apex acute and mucronate, rarely ± obtuse; flowers (1–)3–5(–9).   38a var. buxifolius
+ Shrub to 3 m tall; leaves elliptic, rarely obovate-elliptic, 7–16 mm, apex obtuse and mucronulate; flowers 2–5(–8).   38b var. marginatus

Lower Taxa


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