Crossostephium chinense

蘄艾

Crossostephium chinense (L.) Makino

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

Makino, The Botanical magazine, Tokyo 20: 33. 1906. (Bot. Mag. Tokyo)

同發表文獻

Crossostephium artemisioides Lessing

Hayata, The Journal of the College of Science, Imperial University of Tokyo, Japan 18(8): 24. 1904. (J. Coll. Sci. Univ. Tokyo)

Ciou & Pong, Illustrations of Hakka ethnobotany of Taiwan 150. 2008. (Illustration of Hakka ethnobotany of Taiwan)
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)

shrub

Stems branching above, branches ascending, densely ashy-tomentose, densely leafy above, naked below.
Leaves thick, narrowly spatulate to obovate-oblanceolate, 2–5×0.2–2 cm, entire or trilobate or sometimes 3–5-pinnatifid, apex obtuse, base narrowed, hairy on both surfaces.
Heads racemosely arranged on branches, ca. 7 mm broad, peduncles 6–17 mm long. Involucre sub-hemispheric, 3×7 mm, densely tomentose, bracts 3-seriate, outer ones elliptic, obtuse or acute, middle ones narrow, inner ones slightly shorter, oblong. Outer florets pistillate, 1-seriate, corolla tubular, ca. 1.5 mm long. Central disc florets bisexual; corolla tubular, ca. 1.5 mm long, 5-dentate.
Achenes oblong, ca. 1.5 mm long, 5-angular. Pappus ca. 0.5 mm long.
Chromosome number, 2n = 18 (Peng & Hsu, 1978).

台灣 : a littoral plant on raised coral rocks and cliffs. Rare and threatened in the wild; often cultivated for ornamental or medicinal purposes.
世界 : Distributed in southern China and Ryukyu.