<human>:  How to identify a poisonous plant
<bot>: To identify a poisonous plant, you should look for physical signs such as bright colors, tell-tale odors, milky or discolored sap, thorns or spines, and any other irregular physical characteristics. You should also research the plant to see if it is known to be poisonous. If you have access to an experienced herbalist or botanist, they may be able to help you identify the plant and determine if it is poisonous.