Pilea pseudonotata C. J. Chen

This species is superficially similar to Pilea notata in appearance, but P. notata has only 3 female perianth lobes, longer male cymes, and outer secondary veins that do not anastomose near the margin.

Subshrubs glabrous, monoecious. Stems light green when dry, to 200 cm, ca. 1.5 cm in diam.; stems, petioles, and both surfaces of leaf blade densely covered with cystoliths. Stipules deciduous, green, oblong-lanceolate, 10-12 mm, papery, longitudinally 2-ribbed; petiole subequal in length, 2-11 cm; leaf blade abaxially pale green, adaxially dark green, ovate or ovate-lanceolate, subequal in size, 5-17 × 2.5-8 cm, thinly papery, 3-veined, lateral veins 12-18 each side, transverse, prominent abaxially, external secondary veins anastomosing by margin, base rounded or subcordate, margin serrate or crenate-serrate, apex acuminate. Inflorescences unisexual or sometimes mixed sexes, in pairs, a racemelike cyme, few branched, 1-2.5 cm; male glomerules compact. Male flower greenish, pedicellate, in bud pear-shaped, ca. 2 mm; perianth lobes 4, obovate, connate 1/2 of length, subapically corniculate; stamens 4; rudimentary ovary conic. Female flowers pedicellate; perianth lobes lanceolate, ca. 1 mm, persistent perianth 1/3 as long as achene; staminodes minute. Achene greenish brown, ovoid, ca. 1.2 mm, slightly compressed, oblique, densely spiculose-verrucose. Fl. Mar-Apr, fr. May-Jun.

S Guizhou, E Xizang, S Yunnan [N Vietnam].

Shaded wet places in forests, near streams; 700-2500 m.