Cirsium vulgare | |
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Plant in flower, Joure, Netherlands | |
Seedhead | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Cirsium |
Species: | C. vulgare
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Binomial name | |
Cirsium vulgare | |
Subspecies and varieties[1] | |
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Synonyms[2] | |
Synonymy
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Cirsium vulgare, the spear thistle, bull thistle, or common thistle, is a species of the Asteraceae genus Cirsium, native throughout most of Europe (north to 66°N, locally 68°N), Western Asia (east to the Yenisei Valley), and northwestern Africa (Atlas Mountains).[3][4][5][6] It is also naturalised in North America, Africa, and Australia and is an invasive weed in several regions.[7][8][9] It is the national flower of Scotland.
The plant provides a great deal of nectar for pollinators. It was rated in the top 10 for most nectar production (nectar per unit cover per year) in a UK plants survey conducted by the AgriLand project which is supported by the UK Insect Pollinators Initiative.[10] Marsh thistle, Cirsium palustre, was ranked in first place while this thistle was ranked in sixth place. It also was a top producer of nectar sugar in another study in Britain, ranked third with a production per floral unit of (2300 ± 400 μg).[11]