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

87. Rubus crataegifolius Bunge, Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans. 2: 98. 1833.

牛叠肚 niu die du

Rubus ampelophyllus H. Léveillé; R. crataegifolius f. flavescens Skvortsov; R. davidianus Kuntze; R. ouensanensis H. Léveillé & Vaniot; R. wrightii A. Gray.

Shrubs erect, 1–2(–3) m tall. Branchlets brown or reddish brown, angular, thinly pubescent when young, gradually glabrescent, with slightly curved prickles. Leaves simple; petiole 2–5 cm, pilose, with minute prickles, stipules linear, 6–8 mm, thinly pubescent or subglabrous; blade ovate to narrowly ovate, 5–12 × 5–8 cm, palmately 5-veined, abaxially pubescent and with minute prickles along veins, adaxially subglabrous, base cordate or subtruncate, margin palmately 3–5-lobed; lobes ovate or narrowly obovate, terminal lobe usually acuminate, lateral leaflets acute, irregularly incised-serrate. Inflorescences terminal, rarely axillary, short racemes or flowers several in cluster, 3–5 cm; bracts linear, 4–7 mm, slightly pubescent. Pedicel 5–10 mm, pubescent. Flowers 1–1.5 cm in diam. Calyx abaxially thinly pubescent, subglabrous in fruit; sepals ovate-triangular or ovate, 6–9 × 3–5 mm, apex acuminate. Petals white, elliptic or oblong, 7–9 × 4–5 mm, base puberulous and long clawed, margin erose or slightly undulate. Stamens erect, much shorter than petals; filaments broad, complanate. Pistils numerous, slightly shorter than stamens; style and ovary glabrous. Aggregate fruit yellow to dark red, subglobose, ca. 1 cm in diam., glabrous, lustrous; pyrenes rugose. Fl. May–Jun, fr. Jul–Sep. 2n = 14*, 21*, 28*.

Sunny thickets on slopes, forest margins, ravines, roadsides; 300--2500 m. Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Shandong, Shanxi [Japan, Korea, E Russia].


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