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

19. Pilea villicaulis Handel-Mazzetti, Symb. Sin. 7: 125. 1929.

毛茎冷水花 mao jing leng shui hua

Pilea villicaulis var. subglabra C. J. Chen.

Herbs perennial, rhizomatous, dioecious. Stems few branched, 20-50 cm tall, succulent, with galls on mid portion of internodes; stems and petioles densely spreading-villous or sometimes glabrous. Stipules persistent, broadly triangular, 2-3 mm, membranous, veinless; petiole unequal or subequal in length, 1-7 cm; leaf blade oblong-elliptic, rarely broadly ovate, unequal or subequal in size, 5-15 × 2.5-8 cm, membranous, 3-veined, lateral veins many, prominent abaxially, both surfaces sparsely pilose, base broadly cuneate, rounded or cordate, margin coarsely serrate or dentate, apex entire, acute or caudate. Inflorescences in pairs of dichotomous cymes compacted into clusters, 0.5-1.5 cm, often pubescent on the axis. Male flowers light green or pink, pedicellate, in bud ca. 1.5 mm; perianth lobes 4, 2 cymbiform, subapically corniculate, 2 oblong; stamens 4; rudimentary ovary small, conic. Female flowers subsessile, in bud ca. 0.7 mm; perianth lobes connate at base, unequal, abaxial lobe cymbiform, longer, subapically corniculate; staminodes 3, scale-like, oblong. Achene ovoid, ca. 1 mm, slightly compressed, oblique, strongly verrucose. Fl. Aug, fr. Oct.

* Shaded wet places by streams or in near streams; 500-2500 m. S Yunnan.


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