Pinus monophylla, commonly known as the singleleaf pinyon, is a type of pine tree that is native to the western United States. Synonyms for the word Pinus monophylla include the single-leaf pine, single-needle pine, and Nevada pine. This species of pine tree is known for its unique appearance, featuring long, solitary needles that grow up to 3 inches long. It also produces edible pine nuts that are commonly harvested and consumed in the region. The singleleaf pinyon is an important species within its ecosystem, providing food and habitat for a variety of wildlife, including birds, squirrels, and deer.