Andropogon gerardii vs Andropogon furcatus

Andropogon gerardii and Andropogon furcatus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Andropogon gerardii	Yes	No	No	No
Andropogon furcatus	Yes	No	No	No

As nouns, Andropogon gerardii and Andropogon furcatus are synonyms defined as:

Andropogon gerardii and Andropogon furcatus: tall grass with smooth bluish leaf sheaths grown for hay in the United States

Other synonyms of Andropogon gerardii include blue stem, bluestem.

Andropogon gerardii (noun)	Andropogon furcatus (noun)
tall grass with smooth bluish leaf sheaths grown for hay in the United States	tall grass with smooth bluish leaf sheaths grown for hay in the United States