Woodhouse's toads are named after the 19th century explorer, surgeon, and naturalist, Samuel Woodhouse. Great Plains toads are the only North Dakota toads with large dark symmetrical blotches on their backs. Some toads may or may not have a light stripe down the middle of the back. These toads inhabit the grasslands of North Dakota. They are accomplished burrowers in loose soil and are found at night along roadsides or irrigation ditches where insects are plentiful.
American toads are large toads found in eastern North Dakota.
Their coloration varies from brown, to brick red, to olive green. A light stripe may be found down the middle of the back. The habitat of these toads varies. It may include mowed grassy yards, woodlands, or wherever there is an abundant supply of moisture and insects. Canadian toads are also referred to as Dakota toads.