Juniperus horizontalis vs creeping juniper

Juniperus horizontalis and creeping juniper both are nouns.

Word	Noun	Adjective	Verb	Adverb
Juniperus horizontalis	Yes	No	No	No
creeping juniper	Yes	No	No	No

As nouns, Juniperus horizontalis and creeping juniper are synonyms defined as:

Juniperus horizontalis and creeping juniper: low to prostrate shrub of Canada and northern United States; bronzed purple in winter

Juniperus horizontalis (noun)	creeping juniper (noun)
low to prostrate shrub of Canada and northern United States; bronzed purple in winter	low to prostrate shrub of Canada and northern United States; bronzed purple in winter