black greasewood vs greasewood

black greasewood and greasewood both are nouns.

Word	Noun	Adjective	Verb	Adverb
black greasewood	Yes	No	No	No
greasewood	Yes	No	No	No

As nouns, black greasewood and greasewood are synonyms defined as:

black greasewood and greasewood: low hardy much-branched spiny shrub common in alkaline soils of western America

Other synonyms of black greasewood include Sarcobatus vermiculatus.

black greasewood (noun)	greasewood (noun)
low hardy much-branched spiny shrub common in alkaline soils of western America	low hardy much-branched spiny shrub common in alkaline soils of western America