Veronica serpyllifolia vs thyme-leaved speedwell

Veronica serpyllifolia and thyme-leaved speedwell both are nouns.

Word	Noun	Adjective	Verb	Adverb
Veronica serpyllifolia	Yes	No	No	No
thyme-leaved speedwell	Yes	No	No	No

As nouns, Veronica serpyllifolia and thyme-leaved speedwell are synonyms defined as:

Veronica serpyllifolia and thyme-leaved speedwell: perennial decumbent herb having small opposite leaves and racemes of blue flowers; throughout Eurasia and the New World

Veronica serpyllifolia (noun)	thyme-leaved speedwell (noun)
perennial decumbent herb having small opposite leaves and racemes of blue flowers; throughout Eurasia and the New World	perennial decumbent herb having small opposite leaves and racemes of blue flowers; throughout Eurasia and the New World