Centipeda minima

石胡荽

Centipeda minima (L.) A. Br. & Asch.

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

A. Br. & Asch., Index Seminum [Berlin] 1867: App. 6. 1868. (Index Sem. (Berlin))

台灣首次記錄發表文獻

Makino, The Botanical magazine, Tokyo 25: 13. 1911. (Bot. Mag. Tokyo)

異名

Myriogyne minuta (G. Forst.) Less.

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 23: 440. 1888. (J. Linn. Soc., Bot.)
Centipeda minuta (G. Forst.) Clarke

Matsum. & Koidz., The Botanical magazine, Tokyo 24: 121. 1910. (Bot. Mag. Tokyo)

各語言俗名

中

珠仔草. 吐金草.
英

Spreading sneezeweed.
日

ときんそう. はなひりぐさ. とんきんそん.
台

Móan thian seng. Iáh á chháu. Chu á chháu.

參考文獻

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)

特徵描述

生活型

herb

形態特徵

Stems branched at base, branches procumbent.
Lower, median and upper leaves about equal in size, spatulate, 7–20 mm long, apex obtuse, base cuneate, narrowed, sessile, margins few-toothed above middle, upper surface green, lower surface pale, glandular punctate, both surfaces sparsely cobwebby hairy or glabrate.
Heads depressed-hemispheric, 3–4 mm across, sparsely arranged in leaf axils, subsessile or short peduncled. Involucre 3.5 mm across, bracts biseriate, oblong, equal, pointed, sparsely cobwebby or glabrate on outer surface. Corolla of outer florets small, tubular, 0.2 mm long, green. Corolla of central bisexual florets 0.5 mm long, purple, lobes 4, narrow.
Achenes ca. 1.3 mm long, 5-ridged, hirsute.
Chromosome number, 2n = 20 (Peng & Hsu, 1978).

分布

台灣 : a spring annual in waste places and roadsides in lowlands; common.
世界 : Throughout subtropical and tropical Asia, Afghanistan, the Pacific Islands and Australia.

引證標本

TAIPEI: Nankang, Wang 694; Yangmingshan Natl. Park, Peng 12670. ILAN: Chilan, Peng 15152; Fushan Botanical Garden, Peng 13860. MIAOLI: Chunan, Lin 607; Houlong, Peng 11578. TAICHUNG: Chingshui, Peng 4483; Hoping, Wushihkeng, Shen 201. CHANGHUA: Puhsin, Chaw 744. TAINAN: Tungshan, Peng 8908; Matou, Yen 4270. PINGTUNG: Mutan, Hsuhai, Wang 2103.