Aconite and Helmetflower

Aconite noun - Any of various usually poisonous plants of the genus Aconitum having tuberous roots and palmately lobed leaves and blue or white flowers.

Helmetflower and aconite are semantically related. In some cases you can replace term "Helmetflower" with "Aconite", this nouns are similar.

Helmetflower noun - A poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite.

Aconite and helmetflower are semantically related. You can use "Aconite" instead a noun "Helmetflower".