Checking For Edible Food

When in the woods that is unknown to you and you happen to run out of food, the only recourse is to find food in the vicinity and the best target are the trees and the plants. When there are no fruit trees around, you can be prospecting on the plants. Weeds and grasses are out so you would choose a plant with an edible-looking leaves. And how would you know if you can eat it? First, you smell it. Crush the leaf if necessary to extract the odor. If it is edible, for sure the odor will be friendly. And if it is then go to the next step which is to take a sample with your tongue. Don't worry about being poisoned because a poisonous leaf or plant will have an obnoxious odor. And if the taste is good then you can eat it. And if not then go to the next prospect.