According to their website The Alabama Wildflower Society has several local chapters focused on the spread of knowledge and preservation of native plants. The Society meets for lectures, walks, tours, and organizes planting events in different locations throughout Alabama during the year.
A Close-up of the Hymenocallis coronaria, Cahaba Lily, a member of the amaryllis family. This lily requires a very specialized habitat—swift-flowing water over rocks and lots of sun—and thus is restricted to shoal areas at or above the fall line. You can search the Alabama Plant Atlas below to find out where you can see this showy plant.
The NYBG Mertz library has over 500 holdings covering Alabama’s flora from flowers to forests and features an array of topics from agriculture to a large collection of Alabama's Nursery Seed Catalogs. Here is a short list of books on the Native Plants of Alabama.
Wildflowers of the Central South by 
Blanche Evans Dean
The history of native plant societies in Alabama can be traced back to Blanche Evans Dean (1894-1974), a self-taught botanist. Her tireless efforts in the fields of botany and conservation have made a significant and lasting contribution to the state of Alabama. She was a naturalist, teacher and founder of the Alabama Ornithological Society, the Alabama Wildlife Society, and the Alabama Conservancy. Discouraged by the lack of reference books available on the flora and fauna of Alabama she decided to publish some herself. These books are still considered essential tools for field botanists in Alabama. Image Courtesy of the Alabama Women's Hall of Fame.