Pilea gansuensis C. J. Chen & Z. X. Peng

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.

SE Gansu, NW Sichuan.

* ?Shaded moist places in forests; 1400-1800 m.

Pilea gansuensis là loài thực vật có hoa trong họ Tầm ma. Loài này được C.J. Chen & Z.X. Peng miêu tả khoa học đầu tiên năm 1982.

陇南冷水花（学名：Pilea gansuensis）为荨麻科冷水花属的植物，是中国的特有植物。分布在中国大陆的甘肃、四川等地，生长于海拔1,400米的地区，多生于山坡林下荫湿处，目前尚未由人工引种栽培。