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Japanese Thistle

Cirsium japonicum Fisch. ex DC.

Description

provided by Phytokeys
Perennial herbs, stems 0.5−1.8 m tall, without rosette leaves. Leaves pinnatipartite or pinnatisect, 27.5−30.6 cm long and 17.8−20.2 cm wide, U-shaped space between pinnae, smooth, elliptic to broadly elliptic, base truncate to cuneate, apex caudate, pinnae 8.3−10.4 cm long and 17.2−18.6 mm wide, space between pinnae 2.5−3.0 cm, 6−7 pairs. Capitula arranged into racemes or panicles, mature capitula nodding, involucre bowl shaped, 3.4−3.8 cm long and 1.5−2.0 cm wide. Involucre lacking abaxial appendages, inner phyllaries acute apically, outer phyllaries green with indistinct layers, 1.6−1.8 cm long and 1.8−2.4 mm wide, protrusion 6.0−11.0 mm. Florets with white corolla, 2.8−3.1 cm long, corolla lobes 5.2−6.0 mm long and 0.4−0.7 mm wide; 5 synantherous stamens, detached filaments with irregular protuberances, basal caudate extensions, white or brown, anthers 5.4−8.2 mm long, filaments 6.8−8.0 mm long. Stigmas bifid apically, style 2.0−3.4 cm long, ovaries 1.5−2.0 mm long. Achenes oblong, base acute, apex truncate, beige, 4.3−4.9 mm long and 1.7−1.8 mm wide, long tube-shaped beak apically. Pappus 1.3−2.1 cm long forming basal ring, easily shed.
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Chih-Yi Chang, Hsy-Yu Tzeng, Yen-Hsueh Tseng
bibliographic citation
Chang C, Tzeng H, Tseng Y (2019) Cirsiumtatakaense (Compositae), a new species from Taiwan PhytoKeys (117): 119–132
author
Chih-Yi Chang
author
Hsy-Yu Tzeng
author
Yen-Hsueh Tseng
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Distribution

provided by Phytokeys
Endemic to central-northern Taiwan. Preference for gullies and valleys at 1500−3500 m alt. (Fig. 3).
license
cc-by-3.0
copyright
Chih-Yi Chang, Hsy-Yu Tzeng, Yen-Hsueh Tseng
bibliographic citation
Chang C, Tzeng H, Tseng Y (2019) Cirsiumtatakaense (Compositae), a new species from Taiwan PhytoKeys (117): 119–132
author
Chih-Yi Chang
author
Hsy-Yu Tzeng
author
Yen-Hsueh Tseng
original
visit source
partner site
Phytokeys

Cirsium kawakamii

provided by wikipedia EN

Cirsium kawakamii is a flowering plant in the family Asteraceae. In Chinese, it is known as the Yushan thistle (Chinese: 玉山薊), named for Yushan.

Uses

Cirsium kawakamii is cultivated for medicinal properties, particularly in Puli and Ren'ai Townships of Nantou County. C. kawakamii was believed to be depicted on the reverse side of the NT$1000 bill, near the bottom left corner, but in 2019, botanists reclassified the depicted plant as a new species, C. tatakaense.[1]

Comparison between C. tatakaense (left), C. kawakamii, (center), and C. arisanense (right).

Biology

Cirsium kawakamii typically flowers between September and October, and bears fruit between October and November.[2]

Distribution

The known range of C. kawakamii is in alpine grasslands of north-central Taiwan, between 1,500 and 3,500 meters of elevation.[2]

References

  1. ^ 中時電子報. "明朝劍斬清朝官!網謠傳央行擺烏龍不識「塔塔加薊」". China Times (in Chinese (Taiwan)). Retrieved 2019-02-23.
  2. ^ a b Tseng, Yen-Hsueh; Tzeng, Hsy-Yu; Chang, Chih-Yi (2019-02-14). "Cirsium tatakaense (Compositae), a new species from Taiwan". PhytoKeys (117): 119–132. doi:10.3897/phytokeys.117.29380. ISSN 1314-2003. PMC 6384280. PMID 30804699.
  • 昆明植物研究所. "玉山蓟". 《中国高等植物数据库全库》. 中国科学院微生物研究所. Archived from the original on 2016-03-05. Retrieved 2009-02-25.
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Cirsium kawakamii: Brief Summary

provided by wikipedia EN

Cirsium kawakamii is a flowering plant in the family Asteraceae. In Chinese, it is known as the Yushan thistle (Chinese: 玉山薊), named for Yushan.

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Wikipedia authors and editors
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wikipedia EN