Biology:Cirsium boninense

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Short description: Species of plant

Cirsium boninense
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Cirsium
Species:
C. boninense
Binomial name
Cirsium boninense
Koidz.[1]

Cirsium boninense (オガサワラアザミ, Ogasawara-azami) is a species of thistle in the family Asteraceae that is endemic to the Bonin Islands of Tōkyō Metropolis, Japan.[1][2]

Taxonomy

The species was first described by Japanese botanist Gen-ichi Koidzumi in 1914.[1] The specific epithet relates to the type locality (Chichijima) in the Bonin Islands.[1]

Description

Cirsium boninense is a perennial plant with white flowers from May to June that grows to a height of 40–150 centimetres (16–59 in) among the grasses and rocks in coastal areas, as well as on the forest floor.[3][4]

Conservation status

Cirsium boninense is classed as Near Threatened on the Ministry of the Environment Red List.[5][6] According to the Red Data Book Tokyo, though decreasing on Chichijima, numbers are increasing on Muko-jima (ja) and Nakōdo-jima.[3]

See also

References

  1. 1.0 1.1 1.2 1.3 Koidzumi, G. (1914). "Plantae novae Japonicae II" (in la). The Botanical Magazine 28 (331): 171–173 [172]. ISSN 0006-808X. https://www.biodiversitylibrary.org/page/43535656. 
  2. Katō, M.; Ebihara, A. (March 2011) (in ja). Tokai University Press. pp. 138, 258, 373. ISBN 978-4-486-01897-1. 
  3. 3.0 3.1 "Error: no |title= specified when using {{Cite web}}" (in ja). Tokyo Metropolitan Government. https://tokyo-rdb.metro.tokyo.lg.jp/index.php. 
  4. "Error: no |title= specified when using {{Cite web}}" (in ja). National Museum of Nature and Science. https://www.kahaku.go.jp/research/db/botany/azami/detail.html?no=34. 
  5. "Error: no |title= specified when using {{Cite web}}" (in ja). Ministry of the Environment. 27 March 2020. https://ikilog.biodic.go.jp/rdbdata/files/redlist2020/redlist2020_ikansoku.csv. 
  6. Ministry of the Environment, ed (2015) (in ja). Gyōsei Corporation. p. 613. ISBN 978-4-324-09902-5. 

Wikidata ☰ Q15599350 entry