Common name(s): Cocklebur
- Wikipedia. Online encyclopedia entry (if defined).
- Google images. Web search for photographs.
- GRIN. Taxonomical details, with common names, distribution, and synonyms.
- The Plant List. Taxonomical lookup
Links for Xanthium strumarium
- All Things Plants - Community-assembled plant profile (7 photos)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (3 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 (13 photos)
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (11 photos)
- Turner Photographics - Profile of wildflower of the US Pacific Northwest, with botanical description, habitat and distribution, and photo gallery.
Common name(s): Common Cocklebur