Vasilis Teodoridis:
Rosaceae | Sorbus
44. Sorbus pallescens Rehder in Sargent; Pl. Wilson. 2: 266. 1915.
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Aria pallescens (Rehder) H. Ohashi & H. Iketani; Sorbus ochrocarpa Rehder.
Trees to 7 m tall. Branchlets reddish brown or purplish brown when young; dark grayish brown when old; terete; sparsely pubescent when young; glabrous when old; with few scattered prominent lenticels; buds ovoid or narrowly ovoid; 6–9 mm; apex acute to shortly acuminate; scales several; dark reddish brown; glabrous. Leaves simple; petiole 5–12 mm; sparsely tomentulose or subglabrous; leaf blade elliptic; elliptic-obovate; or ovate; 5–10 x 2–5 cm; lateral veins 10–14 pairs; nearly parallel and terminating in marginal teeth; slightly raised abaxially and impressed adaxially; both surfaces tomentose when young; abaxially persistently tomentose intermixed with soft hairs along midvein and lateral veins; adaxially glabrate; base cuneate to rounded; margin irregularly doubly serrate; apex acute to shortly acuminate. Compound corymbs terminal; 1.5–3.5 x 4–4.5 cm; 10–20(–25)-flowered; rachis and pedicels yellowish white tomentose; glabrate. Pedicel 3–4 mm. Flowers 0.9–1.2 cm in diam. Hypanthium campanulate; abaxially densely yellowish white tomentose. Sepals triangular; 1.5–2 mm; apex acute. Petals white; ovate or triangular-ovate; rarely obovate; ca. 4 x 3 mm; adaxially yellowish white tomentose; apex obtuse or emarginate. Stamens 20; shorter than or nearly as long as petals. Styles 2–4(or 5); shorter than or nearly as long as stamens; basally connate and yellowish white tomentose. Fruit white; stained red; subglobose; 6–8(–10) mm in diam.; sparsely gray tomentose at base and apex when young; with or without few small lenticels; 2–4(or 5)-loculed; hypanthium persistent; seeds brown; obovoid; 3–4 mm; compressed. Fl. May–Jun; fr. Aug–Sep.
Mixed forests on slopes; forest margins; thickets; stream sides; 2000--3300 m. W Sichuan; S Xizang; NW Yunnan.