Common name(s): Mexican sunflower
Hardiness ratings: USDA zone 2~5 - 10~11
- 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 Tithonia rotundifolia
- Annie's Annuals: Tithonia rotundifolia 'The Torch' - Catalog page with photo, basic horticultural information, and noteworthy features. (1 photo)
- BBC Gardening - Plant profile with horticultural details and garden uses. (1 photo)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (40 photos)
- Floridata - Illustrated informative profile page with notes on culture, usage, and noteworthy features. (zone 5-10) (3 photos)
- Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 2-11) (2 photos)
- North Carolina State University factsheet - Plant profile with horticultural details and comments (1 photo)
- Ontario Rock Garden Society - Germination information (additional information for other varieties)
- Rob's Plants - Plant profile with basic horticultural information and often personal observations. Also seed germination records. (2 photos)