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 4-9) (5 photos)
Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (7 photos)
NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (1 photo)