Polygonum posumbu

花蓼

Polygonum posumbu Buch.-Ham. ex D. Don

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

Buch.-Ham. ex D. Don, Prodromus Florae Nepalensis 71. 1825. (Prodr. Fl. Nep.)

台灣首次記錄發表文獻

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 26: 346. 1891. (J. Linn. Soc., Bot.)

異名

Polygonum kawakamii Ohki

Ohki, The Botanical magazine, Tokyo 39: 261. 1925. (Bot. Mag. Tokyo)
Polygonum giranense Ohki

Ohki, The Botanical magazine, Tokyo 39: 260. 1925. (Bot. Mag. Tokyo)
Persicaria kawakamii (Ohki) Sasaki

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

Sasaki, List of plants of Formosa 169. 1928. (List Pl. Formos. (Sasaki))
Polygonum caespitosum Bl. var. giranense (Ohki) Suzuki

Suzuki, Annual report of the Taihoku botanic garden, Faculty of Science and Agriculture, Taihoku Imperial Univeristy , Formosa, Japan 1: 137. 1931. (Ann. Rep. Taihoku Bot. Gard.)
Polygonum caespitosum Bl.

Kudo & Masam., Annual report of the Taihoku botanic garden, Faculty of Science and Agriculture, Taihoku Imperial Univeristy , Formosa, Japan 2: 51. 1932. (Ann. Rep. Taihoku Bot. Gard.)
Polygonum yokusaianum Makino var. laxiflorum (Meisn.) Masam.

Masam., A list of vascular plants of Taiwan 40. 1954. (List Vasc. Taiwan)

各語言俗名

中

濕地蓼.
英

Posumbu knotweed.
日

はなたで. いぬたでもどき. はなたでもどき.
台

Khó thiaū á chháu.

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

Annual ascending herbs, 15–60 cm tall; stems much branched, glabrous; nodes enlarged.
Leaves lanceolate to ovate-lanceolate, 3–7.5 cm long, 0.6–1.7 cm wide, apex acuminate to caudate, base acute; both surfaces moderately to densely pilose; petioles 1–3 mm long; ocreae tubular, 0.3–0.6 cm long, apex truncate, pilose, upper margins ciliate.
Inflorescences 5–9-flowered fascicles in spike-like racemes, terminal or in axils of upper leaves, interrupted, 2–8 cm long; peduncles glabrous, 1.5–3 cm long; bracts weakly oblique funnelform, glabrous to loosely pilose, upper margins ciliate. Flowers white to pink; pedicels exserted; perianth segments 5, obovate, 2–3 mm long, apex obtuse; stamens 8; styles deeply 3-cleft, included; nectaries present.
Achenes dark brown to black, trigonous, smooth, shining, 2–2.5 mm long.

分布

台灣 : at low to high altitudes, in shady and moist places or along roadsides.
世界 : India, Nepal, Myanmar, Thailand, China (except Inner Mongolia & Xinjiang), Indonesia, the Philippines, Japan and Korea.

引證標本

TAIPEI: Muzishan, Hsu 211. ILAN: Nanhutashan, Kao 1966. HSINCHU: Tapachienshan, Chang 2005; Kwanwu, Huang 4159. NANTOU: Fonghuangku, Kuo 10300. TAICHUNG: Lishan, Kuo et al. 8684. PINGTUNG: Nanjenshan, Kuo 337.