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Cirsium toyoshimae
Extinct species of plant From Wikipedia, the free encyclopedia
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Cirsium toyoshimae (トヨシマアザミ, Toyoshima-azami) is an extinct species of thistle in the family Asteraceae that was endemic to the Bonin Islands of Tōkyō Metropolis, Japan.[2][3]
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Taxonomy
The species was first described by Japanese botanist Gen-ichi Koidzumi in 1919.[2]
Description
Cirsium toyoshimae had pale purple flowers and soft spines and was somewhat smaller than the extant Cirsium boninense.[3][4] It used to grow in wooded areas near the coast.[4]
Conservation status
Cirsium toyoshimae is classed as extinct on the Ministry of the Environment Red List.[1][5]
References
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