Tridax procumbens

長柄菊

naturalized

Tridax procumbens L.

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

L., Species Plantarum 2: 900. 1753. (Sp. Pl.)

台灣首次記錄發表文獻

Fukuyama, Short Flora of Formosa 226. 1936. (Short Fl. Formos.)

異名

無

各語言俗名

中

悌藤蝦公夾. 假仙人草. 假菊花. 軟枝蝦公夾. 頂天草. 翠達草. 衣扣菊. 肺炎草. 燈籠草. 金再鉤. 羽芒菊.
英

Axile arrow. Tridax daisy. Coat buttons. Lantern tridax.
日

ことぶきぎく.
台

Tng pìn kiok.

參考文獻

Wu, Yang, Teng, Chang, Yang and Hsieh, Taiwania 55(2): 148. 2010.
Ciou & Pong, Illustrations of Hakka ethnobotany of Taiwan 88. 2008. (Illustration of Hakka ethnobotany of Taiwan)
Chen, The Invasive Alien Plant in Miaoli 126. 2006. (Invas. Al. Pl. Miaoli)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Perennial herbs, caulescent, decumbent. Stems procumbent, branched at base, branches slender, spreading or ascending, 20–50 cm long, hirsute.
Leaves short petiolate, ovate to ovate-lanceolate, few, 2.5–5 cm long, apex acute or acuminate, margins deeply irregularly serrate, pinnatisect, segments few, narrow, base cuneate.
Heads solitary, 1–1.5 cm across, peduncle 10–30 cm long. Involucre subcampanulate, 6–7 mm long. Involucral bracts hispid, in few series; outer bracts densely grayish white, elliptic, ca. 5 mm long, long hirsute; inner bracts tinged purplish, narrower, ca. 6 mm long. Ray florets 4, white, ligulate or 2-lipped. Disc florets yellow, tube 5 mm long, limb 5-lobed, lobes reflexed, hairy.
Achenes brown, oblong, ca. 2 mm long, densely silky pubescent. Pappus 5–6 mm long, of shiny feathery bristles.

分布

台灣 : abundantly naturalized in the lowlands of central and southern Taiwan, along exposed, dry roadsides, on waste grounds and in lawns.
世界 : Tropical America.

引證標本

MIAOLI: Tunghsiao, Peng 11572. TAICHUNG: Fengyuan, Peng 12164. NANTOU: Hsinyi, Chunta forest road, Wang 203; Tsaotun, Chen 456. TAINAN: Szukunshen, Wang 877. PENGHU: Shanshui, Chen 701. PINGTUNG: Fangshan, Chen 921; Manchou, Peng 7828. TAITUNG: Lanyu Is., Peng 5177; Hungyeh, Leu 833.