ball nightshade vs bull nettle

ball nightshade and bull nettle both are nouns.

Word	Noun	Adjective	Verb	Adverb
ball nightshade	Yes	No	No	No
bull nettle	Yes	No	No	No

As nouns, ball nightshade and bull nettle are synonyms defined as:

ball nightshade and bull nettle: coarse prickly weed having pale yellow flowers and yellow berrylike fruit; common throughout southern and eastern United States

Other synonyms of ball nightshade include ball nettle, horse nettle, Solanum carolinense.

ball nightshade (noun)	bull nettle (noun)
coarse prickly weed having pale yellow flowers and yellow berrylike fruit; common throughout southern and eastern United States	coarse prickly weed having pale yellow flowers and yellow berrylike fruit; common throughout southern and eastern United States