non-poisonous vs nonpoisonous

non-poisonous and nonpoisonous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
non-poisonous	No	Yes	No	No
nonpoisonous	No	Yes	No	No

As adjectives, non-poisonous and nonpoisonous are synonyms defined as:

Other synonyms of non-poisonous include nontoxic.

As adjectives, non-poisonous and nonpoisonous are synonyms defined as:

non-poisonous (adjective)	nonpoisonous (adjective)
safe to eat	safe to eat
not producing poison	not producing poison