fool's parsley vs lesser hemlock

fool's parsley and lesser hemlock both are nouns.

Word	Noun	Adjective	Verb	Adverb
fool's parsley	Yes	No	No	No
lesser hemlock	Yes	No	No	No

As nouns, fool's parsley and lesser hemlock are synonyms defined as:

fool's parsley and lesser hemlock: European weed naturalized in America that resembles parsley but causes nausea and poisoning when eaten

Other synonyms of fool's parsley include Aethusa cynapium.

fool's parsley (noun)	lesser hemlock (noun)
European weed naturalized in America that resembles parsley but causes nausea and poisoning when eaten	European weed naturalized in America that resembles parsley but causes nausea and poisoning when eaten