Rocky Mountain Pinon, also known as Pinus edulis, is a tree species native to the southwestern United States, particularly in Colorado, New Mexico, and Arizona. It's commonly referred to as the Colorado Pinon or the Pinyon Pine. The tree produces small, edible pine cones that are popular for their sweet, nutty flavor. Other synonyms for Rocky Mountain Pinon include Single-leaf Pinyon, Nut Pine, and Colorado Pinyon. The tree is distinctive for its cone-shaped crown and short, crooked trunk, making it a popular choice for landscaping in dry, desert-like conditions. Its wood is also used for firewood, charcoal, and fence posts.