Polygonum barbatum

毛蓼

Polygonum barbatum L.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

L., Species Plantarum 1: 362. 1753. (Sp. Pl.)

台灣首次記錄發表文獻

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 26: 334. 1891. (J. Linn. Soc., Bot.)

異名

Ploygonum kotoshoense Ohki

Ohki, The Botanical magazine, Tokyo 39: 262. 1925. (Bot. Mag. Tokyo)
Ploygonum omerostromum Ohki

Ohki, The Botanical magazine, Tokyo 39: 262. 1925. (Bot. Mag. Tokyo)
Persicaria kotoshoense (Ohki) Sasaki

Sasaki, List of plants of Formosa 169. 1928. (List Pl. Formos. (Sasaki))
Persicaria omerostroma Sasaki

Sasaki, List of plants of Formosa 170. 1928. (List Pl. Formos. (Sasaki))

各語言俗名

中

水辣椒.
英

Bearded knotweed.
日

けさくらたで. こうとうしよさくらたで. けたで.

參考文獻

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Perennial ascending herbs, to 100 cm tall; stems much branched, pilose; nodes enlarged.
Leaves lanceolate to narrowly ovate, 6–14 cm long, 2–3.5 cm wide, apex acuminate, base cuneate, both surfaces strigose; petioles 1–4 mm long; ocreae tubular, 1.5–2 cm long, strigose, upper margins ciliate, cilia as long as or longer than ocrea.
Inflorescences 5- or 6-flowered fascicles in spike-like panicles, terminal or in axils of upper leaves, densely flowered, interrupted below, 4–8 cm long; peduncles strigose, 1–2 cm long; bracts weakly oblique funnelform, glabrous, apex acute. Flowers white to pale green; pedicels included or slightly exserted; perianth segments 5, elliptic, ca. 2 mm long, apex acute; stamens 8; styles 3-cleft to middle, included or exserted; nectaries present.
Achenes black, trigonous, smooth, shining, ca. 2 mm long.

分布

台灣 : very common, usually along ditches and in sunny grassy, wet fields and roadsides throughout the island.
世界 : Africa, Afghanistan, India, Himalaya, Malaysia, east to S & SW China, the Ryukyus and the Philippines.

引證標本

ILAN: Suao, Hsu 109. MIAOLI: Tsaochiao, Ou & Kao 8846. NANTOU: Neimoupu, Huang & Kuo 5293. CHIAYI: Wufengmiao, Hsu & Kuo 7490. PINGTUNG: Nanjenshan, Hsu 470; Fungkang, Hsu 4099. TAITUNG: Lanyu, Hsieh 1598.