common thyme vs Thymus vulgaris

common thyme and Thymus vulgaris both are nouns.

Word	Noun	Adjective	Verb	Adverb
common thyme	Yes	No	No	No
Thymus vulgaris	Yes	No	No	No

As nouns, common thyme and Thymus vulgaris are synonyms defined as:

common thyme and Thymus vulgaris: common aromatic garden perennial native to the western Mediterranean; used in seasonings and formerly as medicine

common thyme (noun)	Thymus vulgaris (noun)
common aromatic garden perennial native to the western Mediterranean; used in seasonings and formerly as medicine	common aromatic garden perennial native to the western Mediterranean; used in seasonings and formerly as medicine