Cirsium boninense | |
---|---|
![]() | |
Scientific classification
![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Cirsium |
Species: | C. boninense
|
Binomial name | |
Cirsium boninense |
Cirsium boninense is a species of thistle in the family Asteraceae that is endemic to the Bonin Islands of Tōkyō Metropolis, Japan. [1] [2]
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]
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]
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 and Nakōdo-jima. [3]