helmet flower vs monkshood

helmet flower and monkshood both are nouns.

Word	Noun	Adjective	Verb	Adverb
helmet flower	Yes	No	No	No
monkshood	Yes	No	No	No

As nouns, helmet flower and monkshood are synonyms defined as:

helmet flower and monkshood: a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite

Other synonyms of helmet flower include Aconitum napellus, helmetflower.

helmet flower (noun)	monkshood (noun)
a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite	a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite