Pinus Quadrifolia, commonly known as the Parry pinyon or Nut pine, is a tree species that belongs to the Pinaceae family. Synonyms for Pinus Quadrifolia include Bird's Eye Pine, Greasewood Pine, Four-leaf Pinyon, and Piñon Coloradillo. It is primarily found in the Southwestern United States and northwestern Mexico and is known for its edible nuts, which have a rich, nutty flavor. The tree has a slow growth rate and can reach heights of up to 33 feet (10 meters). Its needles are long and sharp and are arranged in groups of four on the branches, giving the tree its quadrifolia name.