Definition that contains river bottom
- southern cypress common cypress of southeastern United States having trunk expanded at base; found in coastal swamps and flooding river bottoms
- betula nigra birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark
- red birch birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark
- swamp cypress common cypress of southeastern United States having trunk expanded at base; found in coastal swamps and flooding river bottoms
- black birch birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark
- river birch birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark
- taxodium distichum common cypress of southeastern United States having trunk expanded at base; found in coastal swamps and flooding river bottoms
- plains spadefoot this spadefoot toad lives in plains and hills and river bottoms in areas of low rainfall east of the Rocky Mountains
- scaphiopus bombifrons this spadefoot toad lives in plains and hills and river bottoms in areas of low rainfall east of the Rocky Mountains
- bald cypress common cypress of southeastern United States having trunk expanded at base; found in coastal swamps and flooding river bottoms