Carya illinoensis vs Carya illinoinsis

Carya illinoensis and Carya illinoinsis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Carya illinoensis	Yes	No	No	No
Carya illinoinsis	Yes	No	No	No

As nouns, Carya illinoensis and Carya illinoinsis are synonyms defined as:

Carya illinoensis and Carya illinoinsis: tree of southern United States and Mexico cultivated for its nuts

Other synonyms of Carya illinoensis include pecan, pecan tree.

Carya illinoensis (noun)	Carya illinoinsis (noun)
tree of southern United States and Mexico cultivated for its nuts	tree of southern United States and Mexico cultivated for its nuts