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Dinghushan | Family List | Urticaceae | Pilea

Pilea microphylla (L.) Liebm.


Description from Flora of China

Parietaria microphylla Linnaeus, Syst. Nat., ed. 10, 2: 1308. 1759.

Herbs weak, glabrous, monoecious. Stems erect or ascending, blue-green when dry, simple or branched, 3-17 cm tall, 1-1.5 mm in diam., succulent, cystoliths dense. Stipules persistent, triangular, ca. 0.5 mm, membranous; petiole slender, unequal in length, 1-4 mm; leaf blade abaxially pale green, adaxially green, obovate or spatulate, unequal in size, 2-7 × 1.5-3 mm, succulent, papery when dry, midvein indistinct distally, lateral veins several, indistinct, abaxial surface honeycombed, cystoliths linear, adaxial, regularly transverse, base cuneate or attenuate, margin entire, somewhat recurved, apex obtuse. Inflorescences often androgynous, compactly cymose-capitate; peduncle 1.5-6 mm, sometimes sessile; glomerules few flowered. Male flowers pedicellate, ca. 0.7 mm; perianth lobes ovate, subapically corniculate; rudimentary ovary minute, conic. Female perianth lobes subequal, oblong, longer lobe subequal to achene. Achene ovoid, ca. 0.4 mm, compressed, smooth, enclosed by persistent perianth. Fl. Jun-Aug, fr. Sep-Oct.

Commonly naturalized in S China and in greenhouses in N China [native to tropical South America].

生活型: 草本

栽培植物: 野生

特征: 一年生矮小、稍肉质透明草本;

花期: 7

生境: 常生于阴湿墙壁上或屋旁

门中名: 种子植物门

亚门中名: 被子植物亚门

纲中名: 双子叶植物纲

中文别名: 小叶冷水花


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