伏毛蓼 fu mao liao

Persicaria flaccida (Meisner) H. Gross; P. hydropiper (Linnaeus) Spach subsp. flaccida (Meisner) Munshi & Javeid; P. pubescens (Blume) H. Hara; Polygonum donii Meisner; P. flaccidum Meisner; P. flaccidum var. hispidum (Buchanan-Hamilton ex D. Don) J. D. Hooker; P. hispidum Buchanan-Hamilton ex D. Don; P. hydropiper var. flaccidum (Meisner) Steward; P. hydropiper var. hispidum (Buchanan-Hamilton ex D. Don) Steward; P. oryzetorum Blume.

Herbs annual (?perennial). Stems erect, often reddish, 60-90 cm tall, sparsely hispidulous, branched above, swollen at nodes. Leaves without peppery taste; petiole 4-7 mm, densely hispidulous; leaf blade ovate-lanceolate or broadly lanceolate, 5-10 × 1-2.5 cm, both surfaces densely hispidulous, base broadly cuneate, margin ciliate, apex acuminate or acute; ocrea tubular, 1-1.5 cm, membranous, hispid, apex truncate, stoutly long ciliate. Inflorescence terminal or axillary, spicate, pendulous, lax, 7-15 cm, interrupted below; bracts green, funnel-shaped, margin submembranous, ciliate, each 3- or 4-flowered. Pedicels longer than bracts, slender. Perianth green, red above, 5-parted, densely purplish glandular punctate; tepals elliptic, 3-4 mm. Stamens 8, included. Styles 3, connate to below middle. Achenes included in persistent perianth, black, dull, ovoid, trigonous, 2.5-3 mm, densely pitted. Fl. Aug-Sep, fr. Sep-Oct.

Along ditches, water sides, field margins; sea level to 2700 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning (Dalian), Shaanxi, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India, Indonesia, Japan, Korea, Sikkim].