Ambrosia artemisiifolia vs common ragweed

Ambrosia artemisiifolia and common ragweed both are nouns.

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

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

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

Ambrosia artemisiifolia (noun)	common ragweed (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