Single-leaf Pinyon is a type of pine tree that grows in arid regions of North America. It produces edible pine nuts and has been traditionally used by Native Americans for food and medicine. In addition to its scientific name, Pinus monophylla, the Single-leaf Pinyon tree is also known by a variety of synonyms, including Great Basin Pinyon, Nevada Pinyon, One-needle Pinyon, and Pigmy Pinyon. The term "single-leaf" refers to the fact that each needle on the tree grows separately, rather than in clusters like most other pine trees. Understanding synonyms for the Single-leaf Pinyon tree can help in identifying and appreciating this unique and valuable species.