poison dogwood vs poison ash

poison dogwood and poison ash both are nouns.

Word	Noun	Adjective	Verb	Adverb
poison dogwood	Yes	No	No	No
poison ash	Yes	No	No	No

As nouns, poison dogwood and poison ash are synonyms defined as:

poison dogwood and poison ash: smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil

Other synonyms of poison dogwood include poison sumac, Rhus vernix, Toxicodendron vernix.

poison dogwood (noun)	poison ash (noun)
smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil	smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil