The native flora of the United States includes about 17,000 species of vascular plants, plus tens of thousands of additional species of other plants and...

Flora of the Southern United States was the first comprehensive treatment of flora of the southeastern United States. It was written by Alvan Wentworth...

The fauna of the United States of America is all the animals living in the Continental United States and its surrounding seas and islands, the Hawaiian...

The High Plains are a subregion of the Great Plains, mainly in the Western United States, but also partly in the Midwest states of Nebraska, Kansas, and...

parks of the United States Protected areas of the United States Superfund sites in the United States Wildlife of the United States Flora of the United States...

Territories of the United States are sub-national administrative divisions overseen by the federal government of the United States. The various American...

This is a list of flora that are native to the U.S. state of Washington. Sambucus nigra ― blue elderberry Sambucus racemosa ― red elderberry Viburnum...

Flora v. United States, 357 U.S. 63 (1958), affirmed on rehearing, 362 U.S. 145 (1960), was a case in which the Supreme Court of the United States held...

officially the United Mexican States, is a country in the southern portion of North America. It covers 1,972,550 km2 (761,610 sq mi), making it the world's...

a list of flora of Utah, a state in the western United States, listed alphabetically by family. As of 2018[update], there are 3,930 species of plants...