Polygonum runcinatum

散血丹

Polygonum runcinatum 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. 1825. Prodromus Florae Nepalensis 73. (Prodr. Fl. Nep.)

台灣首次記錄發表文獻

Kudo & Masam. 1932. Annual report of the Taihoku botanic garden, Faculty of Science and Agriculture, Taihoku Imperial Univeristy , Formosa, Japan 2: 53. (Ann. Rep. Taihoku Bot. Gard.)

異名

Polygonum morrisonense Hayata

Hayata. 1908. Flora Montana Formosae 185. (Fl. Mont. Formos.)
Persicaria morrisonensis (Hayata) Nakai

Nakai. 1926. Rigakukai 24: 298.
Persicaria runcinata (Bach.-Ham.) Gross

Masam. 1937. The Botanical magazine, Tokyo 51: 234. (Bot. Mag. Tokyo)

各語言俗名

中

散血丹、玉山蓼、鹿蹄草
英

Morrison knotweed
日

にいたかかにそば

參考文獻

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

特徵描述

生活型

herb

形態特徵

Annual procumbent or ascending herbs, 30–80 cm tall; stems much branched, retrorsely pilose.
Leaves subsessile, ovate-lanceolate, lyrate-pinnatifid, 1.8–7 cm long, 1–3 cm wide, apex acuminate, base attenuate, both surfaces glabrous to velutinous at veins, lower surface minutely glandular; petioles winged, usually auricled at base; ocreae tubular, 0.5–1 cm long, apex weakly oblique, glabrous to pubescence, upper margins shortly ciliate or eciliate.
Inflorescences many-flowered fascicles in head-like corymb, terminal or axially, densely flowered; peduncles glandular pubescent, 1–2 cm long; bracts lanceolate, glabrous, apex acute to acuminate, upper margins eciliate. Flowers white to pink; pedicels included; perianth segments 5, elliptic, 4–5 mm long, apex obtuse; stamens 8; styles 3-cleft, included; nectaries present.
Achenes dark brown, trigonous, smooth, shining, 2 mm long.

分布

台灣 : in wet shady fields, pastures, at high altitudes from 2,100 to 3,200 m.
世界 : N India, the Himalayas, Myanmar, Thailand, SW & C China, Taiwan, the Philippines, Malaysia and Indonesia.