common ragweed vs Ambrosia artemisiifolia

common ragweed and Ambrosia artemisiifolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
common ragweed	Yes	No	No	No
Ambrosia artemisiifolia	Yes	No	No	No

As nouns, common ragweed and Ambrosia artemisiifolia are synonyms defined as:

common ragweed and Ambrosia artemisiifolia: annual weed with finely divided foliage and spikes of green flowers; common in North America; introduced elsewhere accidentally

common ragweed (noun)	Ambrosia artemisiifolia (noun)
annual weed with finely divided foliage and spikes of green flowers; common in North America; introduced elsewhere accidentally	annual weed with finely divided foliage and spikes of green flowers; common in North America; introduced elsewhere accidentally