lacquer tree vs poisonous plant

lacquer tree and poisonous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
lacquer tree	Yes	No	No	No
poisonous plant	Yes	No	No	No

As nouns, poisonous plant is a hypernym of lacquer tree; that is, poisonous plant is a word with a broader meaning than lacquer tree:

lacquer tree: small Asiatic tree yielding a toxic exudate from which lacquer is obtained
poisonous plant: a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism

lacquer tree (noun)	poisonous plant (noun)
small Asiatic tree yielding a toxic exudate from which lacquer is obtained	a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism