Persicaria thunbergii

戟葉蓼

Persicaria thunbergii (Siebold & Zucc.) H.Gross

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

H.Gross. 1913. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 49: 275. (Bot. Jahrb. Syst.)

異名

Polygonum thunbergii Sieb. & Zucc.

Forbes & Hemsl. 1891. The journal of the Linnean Society of London. Botany 26: 351. (J. Linn. Soc., Bot.)
Polygonum biconvexum Hayata

Hayata. 1908. Flora Montana Formosae 184. (Fl. Mont. Formos.)
Polygonum thumbergii Sieb. & Zucc. var. biconvexum (Hayata) K. S. Hsu

K. S. Hsu. 1965. Polyg. Taiwan 40.
Polygonum thunbergii Sieb. & Zucc. f. biconvexum (Hayata) Liu, Ying & Lai

Liu, Ying & Lai. 1976. Flora of Taiwan 2: 284. (Fl. Taiwan)
Persicaria thunbergii Nakai var. typica (Franch. & Savat.) Ohki

Ohki. 1926. The Botanical magazine, Tokyo 40: 56. (Bot. Mag. Tokyo)

各語言俗名

中

戟葉蓼、水犁壁草、台灣水犁壁、水犁壁、苦蕎麥、鹿蹄草
台

Chùi iôe piah chháu
英

Thunberg's fleece flower
日

みぞそば

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

Decumbent to ascending herbs, to 100 cm tall, throughout loosely to moderately stellate-pubescent; stems much branched, angled, arms with recurved prickles.
Leaves hastate, 2–7 cm long, 2–5.5 cm wide, apex acute to acuminate, base truncate to weakly hastate, both surfaces strigose, middle lobe broadly elliptic, basal lobes smaller than the middle lobe and with apex acute; petioles 1–4 cm long; ocreae tubular, green, strigose, upper margins often expanded, ciliate.
Inflorescences 1–3-flowered fascicles in head-like panicles, terminal or in axils of upper leaves; peduncles glandular pubescent, 1–6 cm long; bracts lanceolate to elliptic, pilose, apex acuminate, upper margins ciliate. Flowers whitish with pink tinge at the perianth-segment tip; pedicels included; perianth segments 5, elliptic, 3–4 mm long, apex obtuse; stamens 8; styles 2–3-cleft, included; nectaries present.
Achenes greenish-brown to dark brown, trigonous or biconvex, smooth, shining, 2–2.5 mm long.

分布

台灣 : at altitudes of 1,500–2,500 m, in partially shady, wet places, stream bank thickets, and along roadsides.
世界 : Russian Far East, China (S, SW, C, N, E & NE), Korea, Japan and the Ryukyus.

引證標本

ILAN: Nanshan, Hsu 5807; Chihtuan, Kuo 8738. NANTOU: Fonghuangshan, Kuo 10342. TAICHUNG: Shunkuan, Huang & Hsieh 7321. CHIAYI: Alishan, Kuo 80299. TAITUNG: Chihpenwunchien, Hsu & Kao 3293.