Christmas tree. The piñon pine (Pinus edulis) is the state tree of New Mexico. See also Habitat fragmentation References Ronald M. Lanner, 1981. The Piñon Pine: A Natural and Cultural History. University of Nevada Press. . External links Gymnosperm Database: Pinus edulis edulis Trees of the Western United States Flora of Arizona Flora of Colorado Flora of New Mexico Flora of Utah Flora of Wyoming Trees of the Southwestern United States Trees of the South-Central United States Trees of the Great Basin Flora of the Southwestern United States Flora of the Colorado Plateau and Canyonlands region Natural history of the Grand Canyon Edible nuts and seeds Symbols of New Mexico Least concern flora of North America Least concern flora of the United States Taxa named by George Engelmann