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FOC | Family List | FOC Vol. 5 | Urticaceae | Pilea

28. Pilea cordifolia J. D. Hooker, Fl. Brit. India. 5: 558. 1888.

弯叶冷水花 wan ye leng shui hua

Herbs perennial, stoloniferous, monoecious. Stems simple or branched, 30-80 cm tall, succulent, with galls on mid portion of internodes. glabrous, Stipules persistent, ovate-oblong, 8-12 mm, herbaceous, veinless; petioles unequal in length, 1-5 cm, sparsely puberulent; leaf blade abaxially pale green, obliquely ovate or elliptic, unequal in size, 7-12(-16) × 4-6(-8) cm, membranous, 3-veined, lateral veins many, both surfaces sparsely puberulent along veins, base cordate or rounded, margin coarsely crenate-serrate, apex acuminate, acumen serrulate. Inflorescences solitary, male distal, a paniculate cyme, 10-25 cm overall, peduncle 5-15 cm; female inflorescence proximal, shorter. Male flowers reddish, pedicellate, in bud ca. 1 mm; perianth lobes 4; stamens 4; rudimentary ovary small. Female flowers subsessile, in bud ca. 0.6 mm; perianth lobes connate at base, unequal, abaxial lobe cymbiform, longer, subapically corniculate; staminodes 3, scale-like, oblong. Achene brownish, obliquely ovoid, ca. 0.8 mm, compressed, smooth. Fl. Jun-Aug, fr. Aug-Sep.

Shaded wet places along ditches, streams, near streams; 700-1500 m. S Xizang, W Yunnan [NE India, Nepal, Sikkim].


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