Polygonum nepalense

野蕎麥

Polygonum nepalense Meisn.

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

Meisn., Monographiae Generis Polygoni Prodromus 84. pl. 7. fig. 2. 1826. (Monogr. Polyg.)

台灣首次記錄發表文獻

Kudo & Masam., Annual report of the Taihoku botanic garden, Faculty of Science and Agriculture, Taihoku Imperial Univeristy , Formosa, Japan 2: 52. 1932. (Ann. Rep. Taihoku Bot. Gard.)

異名

Polygonum quadrifidum Hayata

Hayata, Materials for a flora of Formosa 233. 1911. (Mat. Fl. Formos.)

各語言俗名

中

蕎麥莧. 尼泊爾蓼.
英

Wild buckwheat.
日

たにそば.
原

Yakogutu (Paiwan).

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 or decumbent herbs, 15–40 cm tall; stems much branched, glabrous; nodes base retrorsely glandular pubescent, slightly enlarged.
Leaves ovate, 1.5–5 cm long, 0.5–2 cm wide, apex acute to acuminate, base attenuate, both surfaces loosely to moderately pilose, lower surface glandular; petioles winged, 0.4–1 cm long; ocreae tubular, 0.3–0.5 cm long, glabrous, pilose at base, upper margins eciliate.
Inflorescences 1–3-flowered fascicles in corymb, terminal or axillary, densely flowered, 1.5–3 cm long; peduncles glandular pubescent, 0.5–2 cm long; bracts lanceolate, glabrous, apex acuminate, upper margins eciliate. Flower white to pink; pedicels included; perianth segments 4 to 5, elliptic, 3–5 mm long, apex acute; stamens 5–6; styles 2-cleft, included.
Achenes dark brown, lenticular, punctate, not shining, ca. 2 mm long.

分布

台灣 : in wet and shady places at altitudes between 1,500 and 2,700 m.
世界 : Tropical N Africa, Pakistan, India, the Himalayas, China (except Xinjiang), Thailand, Indonesia, Malaysia, New Guinea, the Philippines, Korea, Japan and Russian Far East.

引證標本

MIAOLI: Hsiaohsuehshan, Wang et. al. 4971. NANTOU: Yunghai, Huang 1159. CHIAYI: Tungpu, Hsu 3953. PINGTUNG: Huang 7454. HUALIEN: Panpien, Shimizu 11362.