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Sonchus asper

Family: asteraceae
Common name(s): annual sowthistle

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup

Links for Sonchus asper

• All Things Plants - Community-assembled plant profile (4 photos)
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (16 photos)
• Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations. (4 photos)
• Kansas Wildflowers & Grasses - Plant portrait with botanical details and description (9 photos)
• Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (9 photos)
• North Carolina State University factsheet - Plant profile with horticultural details and comments (11 photos)
• Rob's Plants - Plant profile with basic horticultural information and often personal observations. (2 photos)
• Southwest Colorado Wildflowers - Photos and botanical information about the species/genus. (7 photos)