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FOC | Family List | FOC Vol. 19 | Rubiaceae | Theligonum

2. Theligonum japonicum Ôkubo & Makino, Bot. Mag. (Tokyo). 3: 五 [5]. 1889.

日本假繁缕 ri ben jia fan lü

Cynocrambe japonica (Ôkubo & Makino) Makino.

Herbs, perennial, fetid. Stem erect or ascending, 15-36 cm, branched often from base, creeping below, pubescent above. Leaf blade ovate or elliptic, 0.7-3 × 1-1.5 cm, pubescent on both surfaces, base rounded or broadly cuneate, apex acute, lateral veins 3 each side; petiole 0.3-1.5 cm; stipules membranous, connate, ovate or deltoid-ovate, 2-3 mm, ciliate. Flowers unisexual. Staminate flowers: perianth membranous, 3-parted, lobes oblanceolate, 2.5-3 mm, obtuse, reflexed, 3-5-veined; stamens 20-25 or 16-20, pendulous. Pistillate flowers: minute; perianth 3- or 4-toothed. Fruit obliquely ovoid, ca. 5 mm, hairy. Fl. Mar-Jun, fr. Jun-Aug.

Wet places in valleys, by streams; 900-1200 m. Anhui, Shaanxi, Zhejiang [Japan].


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