Plants with edible leaves are the easiest to gather but for many plants, only the seeds or roots are edible. Seeds can be harvested with little or no equipment. The only real requirement is a container. Wild grass seeds need to be thrashed and then gathered in a container. A bundle of cattail leaves makes a good thrashing tool.

Roots and bulbs are best gathered with a small shovel or a digging stick. A very strong sturdy stick will do as a digging tool. To make one, choose a straight branch approximately two or three inches in diameter and about three feet long. Strip off the bark and fashion a chisel point on one end. Bevel one end to resemble something like a sharpened spoon. Heat the tip to harden it. Heat and cool the tip several times to completely remove any sap and further harden the tool. Ideally, you need a tool capable of spearing roots from under the dirt.

To grind your seeds and roots, find a large stone with one flat side to act as a base. Find another stone, as rounded as possible. This stone will be your grinding stone. Place both of these on a tarp to catch the spillage from your seeds as you grind them. Grasp your rounded stone with both hands and roll over the seeds that you have placed on your flat base. This takes quite a bit of patience but eventually you will have a powdery base to use as flour or an edible paste. This may not sound very appetizing but such a floury paste, whether eaten raw or cooked will provide much needed carbohydrates and energy.

Lambs lettuce: This plant can be cut above ground and all of it is consumable.

Miners lettuce: The leaves and stems of this plant can be eaten raw and are excellent when combined with watercress. The greens can also be cooked but this is not recommended because of valuable nutrient loss.

Watercress: Watercress can be found growing in fresh water streams and lakes. It is best eaten raw and fresh. If the water supporting the cress is polluted, it can still be eaten but must be boiled first, draining off all the liquid before eating.

Wild Strawberry: Wild strawberry can be easily identified because of the berries. They are slightly smaller than a store-bought berry but equally tasty. The stems and foliage can also be eaten.

Sagebrush: Sagebrush may provide food when other resources are scarce, for instance in desert regions. It is not recommended for daily eating although it is great in a pinch. The seeds can be boiled and eaten. The leaves are edible also but are very salty and have a pungent tarragon taste. Use the leaves sparingly because of the salt content.

Wild Onion: The entire wild onion is edible. It can be roasted, boiled or eaten raw. This onion (although not really an onion) is full of vitamins and minerals, especially vitamin C, and in fact has more than what is contained in five lemons. You can also crush the onion and use the juice for an insect repellant.

Edible Trees
Pine: Pine trees are everywhere you look. The needles can be crushed or chopped and brewed into tea at any time of the year. This tea contains many nutrients and will sustain you over long periods of time in the wilderness.

Fallen pine cones can be roasted over a fire and the seeds inside the cones can then be opened and eaten. These are very tasty and again rich in Vitamins and nutrients. You can also use the cooked seeds to grind for meal for flours.

Oak: The leaves of the oak are edible raw, if pest free. The fruit of the oak is the acorn, which has been in use even today by American Indians for soup and pudding. The nutmeat inside should taste slightly bitter or even sweet. If the taste is unpleasantly bitter you can remove the taste by roasting. If it is so bitter you can’t stand it, you will have to leach out the tannic acid. This is a somewhat time consuming process that involves soaking the acorns in fresh water for at least overnight and then repeating several times. When food itself is an issue, you will probably not take the time to leach acorns in the wilderness.

Maple: The seeds are edible raw or roasted and can be pounded into flour. The sap can be obtained in early spring by drilling a hole in the tree. This thin sweet sap is filled with nutrients and is hydrating.

Aspen: The thin inner bark found at the bottom of an aspen tree is mildly sweet and very nutritious.

Desert Survival
Here are two edible plants found specifically in desert environments.

Desert Lily: The edible part of this plant is the bulb. You'll have to dig down below the desert surface to savor this edible delight.

Prickly Pear Cactus: The prickly pear cactus offers year-round food and hydration as well. The plant, above ground is composed of fat fleshy arms and joints and the fruit is about the size of a lemon and red to pink in color. The fruit can be eaten raw. The seeds can be eaten raw or boiled. The pulp of the joints and arms can be peeled and eaten raw or boiled or sun dried. Remember to remove the spikes first. This plant can sustain you for long periods of time and is loaded with vitamin A, B, B12, and C.

Ants: Ants have long been eaten as a food source. You can eat them raw or cooked.

Grubs: Rich in fat, protein, and carbohydrates, this bug can be found in the roots of trees. Just dig around the roots and you'll probably find some of these bugs, which can be eaten raw or cooked.

Crickets: Roasted crickets can really hit the spot when you're trying to survive in the wilderness. They can also be eaten raw. You do need to remove the legs and antennae.

June Beetle: Look for these beetles, also known as may or june bugs, during the months of May through July. You must pull off the hard shell, legs, and head before eating. The larva of the June beetle is also edible and is found in the soil year-round.