Ageratum houstonianum

紫花藿香薊

naturalized

Ageratum houstonianum Mill.

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

Mill., The Gardeners Dictionary no. 2. 1768. (Gard. Dict. (ed. 8))

台灣首次記錄發表文獻

Kitamura, Acta phytotaxonomica et geobotanica eng 1: 282. 1932. (Acta Phytotax. Geobot.)

異名

無

各語言俗名

中

斷血草. 臭草仔. 紫花毛麝香. 勝紅薊. 墨西哥藍薊. 熊耳草. 墨西哥香薊.
英

Mexican ageratum. Blue maudlin. Blue billygoat-weed. Floss flower. Garden ageratum. Ageratum. Mexican ageratum.
日

おおかつこうあざみ.
原

Maganzu (Bunun).

參考文獻

Wu, Yang, Teng, Chang, Yang and Hsieh, Taiwania 55(2): 146. 2010.
Chen, The Invasive Alien Plant in Miaoli 35. 2006. (Invas. Al. Pl. Miaoli)
Jen-Han Lin, Study on the plant utilization of Taki-bakka Bunun Tribe in Nantou county. Master thesis. National Pingtung university of science and Technology 53. 2004. (Study on the plant utilization of Taki-bakka Bunun Tribe in Nantou county)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Annual herbs, stems erect, 30–110 cm tall, copiously pubescent with crisped hairs, sometimes branched.
Leaves opposite, petiolate, ovate, to deltoid, 4–7 cm long, thick, apex acute, base usually cordate, margins crenate.
Heads over 6 mm across; involucre ca. 5 mm long, bracts subulate to linear-lanceolate, apex acuminate, margins entire, ciliolate, densely glandular puberulous outside; corolla blue, ca. 3 mm long.
achenes stout, ca. 2 mm long; pappus of 5 scales nearly 2.5 mm long, ending in a slender tip less than twice as long as body.

分布

台灣 : a common weed from low to middle elevations throughout.
世界 : Native of tropical America, now widely naturalized in the warm parts of the world.

引證標本

TAIPEI: Pinglin, Shen 1881. MIAOLI: Tunglo, Peng 11559. NANTOU: Hsitou, Peng 5317. CHIAYI: Peng 8880. PINGTUNG: Lilungshan, Chen 807. TAITUNG: Lanyu Is., Peng 10661. HUALIEN: Hsiulin, Leu 1450.