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Chinese Plant Names | Family List | Urticaceae | Pilea

9. Pilea dolichocarpa C. J. Chen, Bull. Bot. Res., Harbin. 2(3): 49. 1982.

光疣冷水花 guang liu leng shui hua

Description from Flora of China

Herbs perennial or subshrubs, glabrous, dioecious. Stems black when dry, much branched, terete, to 100 cm tall, woody at base; stems and stipules densely covered with cystoliths. Stipules deciduous, green, oblong, 6-7 mm, papery, longitudinally 2-ribbed; petiole unequal in length, 0.7-2.7 cm; leaf blade abaxially pale green, adaxially dark green, ovate to lanceolate, slightly oblique, subequal in size, 2.5-10 × 1.2-3.5 cm, papery, 3-veined, lateral veins 10 each side, transverse secondary veins anastomosing by margin, both surfaces lustrous, base rounded or subcordate, margin crenate-serrate from base, apex acuminate or shortly caudate-acuminate. Inflorescences in pairs, male inflorescence a cyme, dichotomously branched 4-6 times, ca. 1-2 cm; female ones dichotomously branched 3 times, ca. 1 cm; bracts ovate, ca. 0.6 mm. Male flowers shortly pedicellate, in bud obovoid, ca. 1.4 mm; perianth lobes 4, reddish, oblong-ovate, connate 1/2 of length, subapically corniculate; stamens 4; rudimentary ovary conic, ca. 0.3 mm. Female flowers shortly pedicellate; perianth lobes triangular-ovate; staminodes oblong. Achene oblong-ovoid, ca. 1.2 mm, slightly compressed, sparsely tuberculate, persistent perianth lobes 3 times shorter than achene. Fl. Jan-Apr, fr. Apr-May.

Shaded wet places in forests in limestone mountains; 1100-1300 m. W Guangxi, SE Yunnan (Xichou) [Vietnam].


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