NatureServe Explorer Species Reports --
NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants,
animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides
in-depth information on rare and endangered species, but includes common plants and animals too.
NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative
taxonomic information on plants, animals, fungi, and microbes of North America and the world.