yerba buena vs Micromeria douglasii

yerba buena and Micromeria douglasii both are nouns.

Word	Noun	Adjective	Verb	Adverb
yerba buena	Yes	No	No	No
Micromeria douglasii	Yes	No	No	No

As nouns, yerba buena and Micromeria douglasii are synonyms defined as:

yerba buena and Micromeria douglasii: trailing perennial evergreen herb of northwestern United States with small white flowers; used medicinally

Other synonyms of yerba buena include Micromeria chamissonis, Satureja douglasii.

yerba buena (noun)	Micromeria douglasii (noun)
trailing perennial evergreen herb of northwestern United States with small white flowers; used medicinally	trailing perennial evergreen herb of northwestern United States with small white flowers; used medicinally