chaffweed vs false pimpernel

chaffweed and false pimpernel both are nouns.

Word	Noun	Adjective	Verb	Adverb
chaffweed	Yes	No	No	No
false pimpernel	Yes	No	No	No

As nouns, chaffweed and false pimpernel are synonyms defined as:

chaffweed and false pimpernel: weedy plant having short dry chafflike leaves

Other synonyms of chaffweed include bastard pimpernel.

chaffweed (noun)	false pimpernel (noun)
weedy plant having short dry chafflike leaves	weedy plant having short dry chafflike leaves