103. Rubus tephrodes Hance, J. Bot. 12: 260. 1874.
灰白毛莓 hui bai mao mei
Shrubs scandent, to 3–4 m tall. Branchlets brown or purplish brown, densely gray tomentose, with sparse, curved prickles, ± with unequal long glandular hairs and bristles 1–3(–5) mm or without bristles. Leaves simple; petiole 1–3 cm, tomentose, with sparse, minute prickles or glandular hairs, bristly; stipules caducous, free, 5–8 mm, margin laciniate or pectinately parted, tomentose-villous; blade suborbicular, 5–11 × 5–10 cm, palmately 5-veined, lateral veins 3 or 4 pairs, abaxially densely gray tomentose, with sparse, small prickles and bristles along midvein, adaxially pilose or with sparse, glandular hairs, base cordate, margin 5–7-lobed, irregularly serrate, apex acute or obtuse. Inflorescences terminal, cymose panicles, 10–16 cm, many flowered; rachis and pedicels tomentose-villous, with sparse, glandular hairs and bristles; bracts 5–7 mm, pectinately lobed; lobes linear, tomentose-villous. Pedicel 4–10 mm. Flowers ca. 1 cm in diam. Calyx densely gray tomentose, usually without glandular hairs and bristles; sepals ovate, 4–7 × 3–5 mm, margin entire, apex acute. Petals white, suborbicular to oblong, slightly shorter or nearly as long as sepals, pilose, base shortly clawed. Stamens many, ca. as long as petals; filaments slightly broadened toward base. Pistils 30–50, longer than stamens; style and ovary glabrous. Aggregate fruit purplish black, globose, 1–1.5 cm in diam., glabrous, with many drupelets; pyrenes rugose. Fl. Jun–Aug, fr. Aug–Oct. 2n = 28*.
Mountainous regions and summits, foothills, slopes, roadsides, thickets, montane valleys; below 1500 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Taiwan, Zhejiang.
The name Rubus megalothyrsus needs to be lectotypified in order to place the name into the synonymy of either R. tephrodes var. tephrodes or var. ampliflorus.
