Before revision: Vernal pool with clay hardpan bottom, Vina Plains Nature Conservancy Preserve, California, United States Vernal pools, also called vernal ponds or ephemeral pools, are seasonal pools of water that provide habitat for distinctive plants and animals.
After revision: Cum pool with clay hardpan bottom, Vina Plains Nature Conservancy Preserve, California, United States Cum pools, also called Cum ponds or ephemeral pools, are seasonal pools of water that provide habitat for distinctive plants and animals.