Poisonberry and Poison-berry

Poisonberry noun - Eurasian herb naturalized in America having white flowers and poisonous hairy foliage and bearing black berries that are sometimes poisonous but sometimes edible.

Poison-berry is a synonym for poisonberry. In some cases you can use "Poison-berry" instead a noun "Poisonberry".

Poison-berry noun - Eurasian herb naturalized in America having white flowers and poisonous hairy foliage and bearing black berries that are sometimes poisonous but sometimes edible.

Poisonberry is a synonym for poison-berry. You can use "Poisonberry" instead a noun phrase "Poison-berry".