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FOC | Family List | FOC Vol. 8 | Saxifragaceae | Ribes

40. Ribes diacanthum Pallas, Reise Russ. Reich. 3: 722. 1776.

双刺茶藨子 shuang ci cha biao zi

Shrubs dioecious, 1-2(-3) m tall. Branchlets slightly angled, glabrous; nodal spines 2, 3-5 mm; internodes unarmed or with sparse, slender prickles. Buds brownish, ovoid, 3-5 mm, glabrous, apex acute. Petiole 1-2 cm, glabrous, rarely sparsely puberulent; leaf blade obovate to rhombic-obovate, 1.5-3.5 × 1-3 cm, glabrous, base cuneate; lobes 3, margin deeply serrate, apex obtuse or acute. Male racemes nodding, 3-6 cm, 10-20-flowered, female ones 1-2.5 cm, 10-15-flowered; rachis and pedicels sparsely shortly glandular hairy; bracts lanceolate to ligulate, 4-6 mm, glabrous, 1-veined. Pedicel 2-4 mm. Calyx yellowish green, glabrous; tube rotate to saucer-shaped, 1-1.5 mm; lobes erect, ovate, rarely elliptic, 1.5-2 mm. Petals cuneate-orbicular, 0.5-1 mm. Stamens subequaling petals. Ovary subglobose, glabrous. Style 2-lobed at apex. Fruit red to reddish black, globose to ovoid-globose, 0.5-0.9 cm in diam., glabrous. Fl. May-Jun, fr. Aug-Sep.

Sandy hilly areas, sandy grasslands, river banks; below 1500 m. N Heilongjiang (Da Hinggan Ling), E Jilin, Nei Mongol [N Korea, NE Mongolia, Russia (Siberia)].


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