Sorbus prattii Koehne

Shrubs 2–4 m tall. Shoots dark gray to brownish gray, terete, with few lenticels, initially sparsely pubescent, glabrous when old; buds ovoid, 5–9 mm, apex acute; scales several, dark reddish brown, sparsely brown pubescent. Leaves imparipinnate, together with rachis 8–15 cm; petiole 1–2 cm; stipules caducous, lanceolate to ovate, 4–8 mm, submembranous, margin entire or sometimes lobed; rachis sulcate, initially puberulous, subglabrous when old, narrowly winged; leaflet blades 9–13(–17)-paired, at intervals of 6–10 mm, dark green adaxially, oblong, rarely oblong-ovate, 1.5–3 × 0.5–1 cm, lateral veins 7–9 pairs, abaxially puberulous along midvein, densely papillose, adaxially glabrous, base obliquely rounded, margin minutely sharply serrate apically, with 5–10 teeth, rarely more along each margin, apex obtuse or acute. Compound corymbs terminal, 5.5–9 × 4.5–8 cm, loosely many flowered; rachis and pedicels glabrous or puberulous, gradually glabrescent, with small ellipsoid lenticels; bracts caducous, lanceolate, 4–6 mm. Pedicel 2–3 mm. Flowers 7–8 mm in diam. Hypanthium campanulate, abaxially glabrous. Sepals triangular, apex obtuse. Petals white, broadly ovate, ca. 5 × 4 mm, adaxially puberulous or subglabrous, apex obtuse. Stamens 20, ca. 1/2 as long as petals. Styles 5 or 4, nearly as long as stamens, puberulous or subglabrous, connate at base to apical 1/3. Fruit white, globose, 7–8 mm in diam.; sepals persistent. Fl. May–Jun, fr. Aug–Sep.

W Sichuan, S Xizang, C and NW Yunnan [Bhutan, Sikkim].

Mixed or coniferous forests in mountain regions; 2000--4500 m.

Mjallarreynir (Sorbus prattii) er lítil runni af rósaætt frá Kína.

Sorbus prattii là loài thực vật có hoa trong họ Hoa hồng. Loài này được Koehne miêu tả khoa học đầu tiên năm 1913.

西康花楸（学名：Sorbus prattii）为蔷薇科花楸属的植物，是中国的特有植物。分布于中国大陆的西藏、云南、四川等地，生长于海拔2,100米至3,700米的地区，多生在高山杂木丛林内。