Parry's Pinyon is a species of pine tree that is commonly found in the southwestern United States and northern Mexico. This tree is also known by several other names that are often used interchangeably, including Parry's Pine, Parry's Nut Pine, and single-leaf Pinyon. These trees are typically small, reaching a height of no more than 30 feet, with a trunk that can be up to two feet in diameter. They are commonly found in rocky or sandy soils, and are a popular source of food for wildlife, including squirrels, birds, and deer. Although they are not used commercially for timber, Parry's Pinyon trees are highly valued for their ornamental qualities and their ecological importance.