Summary ²

Sonchus arvensis (corn sow thistle, dindle, field sow thistle, gutweed, swine thistle, tree sow thistle, field sowthistle or field milk thistle ) is a medicinal plant. It is an invasive species in the Great Lakes region and was first sighted in 1865.

Sources and Credits

1. (c) Frank Mayfield, some rights reserved (CC BY-SA), http://www.flickr.com/photos/33397993@N05/5320745981
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Sonchus_arvensis

More Info

• iNat taxon page
• African Plants - a photo guide
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Calflora
• CalPhotos
• eFloras.org
• 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

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