Polygonum senticosum

刺蓼

Polygonum senticosum (Meisn.) Fr. & Sav.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

Fr. & Sav., Enumeratio Plantarum in Japonia Sponte Crescentium 1: 401. 1875. (Enum. Pl. Jap.)

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 26: 349. 1891. (J. Linn. Soc., Bot.)

Persicaria senticosa (Hassk.) Nakai

Ohki, The Botanical magazine, Tokyo 40: 54. 1926. non. (Meisn.) Gross ex Loesen.. (Bot. Mag. Tokyo)

W. C. Lin, Wild flowers of Taiwan - the 1300 species found in the lower elevation . 2005. (Wild flowers of Taiwan)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

herb

Annual decumbent or climbing herbs, to 70 cm tall; stems much branched, angled, armed with recurved prickles.
Leaves deltoid, 1.5–7 cm long, 2–6.5 cm wide, apex subacute to acuminate, base cordate to sagittate, with two triangular lobes, both surfaces pilose, beneath veins retrorsely prickly; petioles 1.5–6.5 cm long; ocreae tubular, pilose, upper margins expanded and foliaceous, ciliate.
Inflorescences 2–3-flowered fascicles in head-like racemes, terminal or axillary; peduncles retrorsely prickly, glandular pubescent, 2–5 cm long; bracts lanceolate, apex acuminate, upper margins ciliate. Flowers white to pink; pedicels included; perianth segments 5, elliptic, 3–4 mm long, apex obtuse; stamens 8; styles 3-cleft, included; nectaries present.
Achenes dark brown to black, trigonous, rugose, not shining, 3–3.5 mm long.

台灣 : at low to middle altitudes, in open sunny or partial shady thickets along roadsides.
世界 : Russian Far East, China (S, E & NE), Korea, Japan and the Ryukyus.