Carolina Nature - Illustrated woody plant profile, with notes on range and identification. (3 photos)
Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 3-7) (11 photos)
Denver Botanic Gardens - Description, native range, and cultural requirements. (additional pages for other varieties) (zone 3) (2 photos)
Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (26 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 3-8) (2 photos). Also a page for 'SMNVCDD' LIL DITTY.
(3 photos)