Gymnosporangium juniperi-virginianae vs apple rust

Gymnosporangium juniperi-virginianae and apple rust both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gymnosporangium juniperi-virginianae	Yes	No	No	No
apple rust	Yes	No	No	No

As nouns, Gymnosporangium juniperi-virginianae and apple rust are synonyms defined as:

Gymnosporangium juniperi-virginianae and apple rust: rust fungus causing rust spots on apples and pears etc

Other synonyms of Gymnosporangium juniperi-virginianae include cedar-apple rust.

Gymnosporangium juniperi-virginianae (noun)	apple rust (noun)
rust fungus causing rust spots on apples and pears etc	rust fungus causing rust spots on apples and pears etc