When the cattail is immature and still green, you can boil the female portion and eat it like corn on the cob. All parts the Dandelion are edible. Many plants that have milky sap are poisonous, this is not true for dandelions. Eat the leaves raw or cooked. Boil the roots as a vegetable.
Dandelions become more bitter with age.
All parts of the Prickly Pear Cactus are edible. Many people grow and harvest this wonderful food in their yards. Peel the fruits and eat them fresh or crush them to prepare a refreshing drink. Avoid the tiny, pointed hairs. The pads can be peeled and eaten raw or added to other foods like omelets or casseroles.