a poisonous plant is dangerous
baneberry is poisonous_plant. poisonous_gas is chemically_harmful_substance. poison_ash is poisonous_plant. tomato_plants is poisonous_but_tomatoes_not. explosive is dangerous_thing. dogbane is poisonous_plant. poisonous_plant is plant. poisonous_gas is toxic_substance. aconite is poisonous_plant. hemlock is poisonous_plant.