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

168. Rubus gressittii F. P. Metcalf, Lingnan Sci. J. 19: 25. 1940.

江西悬钩子 jiang xi xuan gou zi

Shrubs scandent, 1–3 m tall. Branchlets brownish to reddish brown, slender, gray or yellowish white tomentose when young, finally glabrate, with sparse, slightly curved small prickles. Leaves simple; petiole 1–1.5 cm, tomentose-villous; stipules caducous, lanceolate or ovate-lanceolate, 7–11 mm, soft hairy; blade lanceolate to elliptic-lanceolate, 5–9 × 2.5–4 cm, veins prominent abaxially, slightly impressed adaxially, abaxially densely rusty tomentose, adaxially glabrous, base rounded to truncate, rarely shallowly cordate, margin shallowly obtusely serrate, apex shortly acuminate. Inflorescences terminal or axillary, racemes, 4–8 cm, 4–9-flowered; rachis and pedicels yellowish tomentose-villous, shortly stipitate glandular, with sparse, needle-like prickles; bracts lanceolate to ovate-lanceolate, 5–8 mm, puberulous, without stipitate glands. Pedicel to 2.5 cm. Flowers 0.8–1.2 cm in diam. Calyx densely pale rusty tomentose, sparsely shortly stipitate glandular; sepals erect, rarely reflexed in fruit, ovate to triangular-ovate, 4–7 × 2–4 mm, margin entire, apex acute. Petals white, tinged yellow, ovate or suborbicular, 5–6 × 4.5–5.5 mm, both surfaces thinly pubescent basally, base shortly clawed, apex obtuse. Stamens many, shorter than petals; filaments broad, flat, glabrous. Pistils numerous, longer than stamens; style and ovary glabrous. Aggregate fruit dark red, globose, 8–10 mm in diam, glabrous, with many drupelets; pyrenes distinctly rugose. Fl. Apr–May, fr. Jun–Jul.

Thickets on slopes, forest margins, roadsides, grasslands; 500--1200 m. Guangdong, Hunan, Jiangxi.


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