79. Pilea gansuensis C. J. Chen, Bull. Bot. Res., Harbin. 2(3): 118. 1982.
陇南冷水花 long nan leng shui hua
Herbs weak, glabrous, dioecious. Stems much branched, to 20 cm tall, succulent. Stipules persistent, greenish, ovate-oblong, 3-5 mm, herbaceous; petiole unequal in length, 0.5-1.5 mm; leaf blade ovate, unequal in size, 1.5-5 × 1-2.5 cm, 3-veined, basal lateral veins reaching margin in middle, anastomosing with adjacent lateral veins, lateral secondary veins 3-6 each side, indistinct, abaxial surface glabrous, adaxial surface sparsely pilose, cystoliths linear, often inconspicuous, base rounded or shallowly cordate, margin denticulate or ciliate, apex acuminate or acute. Inflorescences in pairs, of 2-3 glomerules compactly clustered a globose head 3-6 mm in diam., often with an inconspicuous receptacle and involucre, peduncle 1-3.5 cm; bracts triangular-ovate, somewhat connate at base, ca. 0.5 mm. Female inflorescence not seen. Male flowers yellow-green, pedicellate, in bud ca. 1.5 mm; perianth lobes connate at base, subapically corniculate; rudimentary ovary minute. Fl. Jul-Aug.
* ?Shaded moist places in forests; 1400-1800 m. SE Gansu, NW Sichuan.