Cahaba River National Wildlife Refuge in Alabama supports 64 rare and imperiled plant and animal species – 13 of which are found nowhere else in the world. It’s home to the largest known stand of Cahaba lilies, a beautiful plant that begins to bloom around Mother’s Day. It’s always a magnificent display. Photo by Keith Bozeman. Posted on Tumblr by the US Department of the Interior, 5/6/16.