All Floras      Advanced Search
FOC Vol. 5 Page 303 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 5 | Polygonaceae | Polygonum

69. Polygonum wallichii Meisner, Monogr. Polyg. 83. 1826.

球序蓼 qiu xu liao

Persicaria microcephala (D. Don) H. Gross var. wallichii (Meisner) H. Hara.

Herbs annual. Stems suberect or ascending, 20-30 cm tall, angulate, glabrous. Petiole 1-2 cm, not winged, usually auriculate at base; leaf blade broadly cordate or ovate-cordate, 3-5 × 2-3.5 cm, abaxially sparsely strigose, adaxially subglabrous, base subcordate, margin entire, shortly ciliate, apex acuminate; ocrea tubular, 6-8 mm, membranous, pilose, apex truncate, shortly ciliate. Inflorescence usually geminate, capitate, 5-8 mm in diam.; peduncle glabrous; bracts ovate, apex obtuse, glabrous. Perianth white, 5-parted; tepals broadly elliptic, 2-3 mm. Stamens usually 8. Styles 3, connate to below middle; stigmas capitate. Achenes black, opaque, ovoid, trigonous, 2-2.5 mm, densely punctate. Fl. Jul-Aug, fr. Aug-Oct.

Mixed forests on mountain slopes, wet valleys; 2500-3400 m. Xizang, Yunnan [NE India, Nepal, Sikkim].


Flora of China @
Browse by
Advanced Search

Flora of China Home




 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |