GRIN. Taxonomical details, with common names, distribution, and synonyms.
Links for Aristolochia tomentosa
Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zones 5a-8b) (3 photos)
Kemper Center - Plantfinder page for one of the plants growing at the Missouri Botanical Garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 5 to 8) (9 photos)
Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (8 photos)
Rob's Plants - Plant profile with basic horticultural information and often personal observations. (3 photos)
Seneca Hill Perennials - One of the plants featured on this catalog page, with photo and descriptive information. (zone 4) (1 photo)
(3 photos)