Summary ⁶

Cirsium arvense is a perennial species of flowering plant in the family Asteraceae, native throughout Europe and northern Asia, and widely introduced elsewhere. The standard English name in its native area is creeping thistle.

https://www.natureconservancy.ca/en/what-we-do/resource-centre/invasive-species/canada-thistle.html

How to recognize it? ⁷

Smooth stem. Irregular, wavy non-hairy leaves with spiny edges. Small (<1in) lavender flowers with sweet scent.

Native lookalike: Hookers Thistle

Observations in Banff National Park ⁸

2020-21: https://inaturalist.ca/observations?project_id=69401&taxon_id=60132&place_id=any&verifiable=any
2019-20: https://inaturalist.ca/observations?project_id=38602&taxon_id=60132&place_id=any&verifiable=any

Fontes e Créditos

1. (c) Almantas Kulbis, alguns direitos reservados (CC BY-NC), enviado por Almantas Kulbis
2. (c) David Rasp, alguns direitos reservados (CC BY), http://commons.wikimedia.org/wiki/File:20200701Cirsium_arvense3.jpg
3. (c) Danny S., alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Cirsium_arvense-039.jpg
4. (c) Donald Hobern, alguns direitos reservados (CC BY), http://commons.wikimedia.org/wiki/File:Cirsium_arvense_(19531824473).jpg
5. (c) Matt Lavin, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Cirsium_arvense_(5002124956).jpg
6. Adaptado por bioblitzbanff de uma obra de (c) Wikipedia, alguns direitos reservados (CC BY-SA), https://en.wikipedia.org/wiki/Cirsium_arvense
7. Adaptado por metallyza de uma obra de (c) bioblitzbanff, alguns direitos reservados (CC BY-SA)
8. (c) metallyza, alguns direitos reservados (CC BY-SA)

Mais informações

• BioDiversity4All taxon page
• Atlas of Living Australia
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Calflora
• CalPhotos
• eFloras.org
• Flora Digital de Portugal
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• Go Botany
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• Jepson eFlora
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• NBN Atlas
• New Zealand Plant Conservation Network
• OregonFlora.org
• SEINet Symbiota portals
• Tropicos
• USDA PLANTS database
• VASCAN by Canadensys
• World Flora Online
• 日本のレッドデータ検索システム
• 植物和名−学名インデックス YList

BioDiversity4All Mapa