Science magazines
- Apalachicola Rosemary
- Appalachian Elktoe
- Appalachian Monkeyface
- Applegate's Milk-vetch
- Aquatic Box Turtle
- Aristida Chaseae
- Arizona Agave
- Arizona Cliffrose
- Arizona Hedgehog Cactus
- Arkansas Fatmucket
- Arkansas River Shiner
- Armored Snail
- Arroyo Toad
- Ash Meadows Amargosa Pupfish
- Ash Meadows Blazing Star
- Ash Meadows Gumplant
- Ash Meadows Ivesia
- Ash Meadows Milk-vetch
- Ash Meadows Naucorid
- Ash Meadows Speckled Dace