gray pine Pinaceae Pinus
sabiniana Douglas ex Douglas symbol: PISA2
Leaf: Evergreen needles, 8 to 12 inches long, 3 per fascicle, distinctly gray-green in color with many lines of stomatal bloom, slender and drooping.
Flower: Species is monoecious; male cones are yellow; female cones are dark purple.
Fruit: Large woody cones (6 to 10 inches long), egg-shaped when open; cone scales very long, thick, sharply keeled, and tipped with a large, thick spine that may be straight or curved; remain on tree for many years. Large oblong seed with detachable wing.
Twig: Stout, rough, orange-brown.
Bark: Mature bark is dark gray, thick, and has irregular ridges and furrows; somewhat scaly.
Form: Moderate sized evergreen conifer (40 to 70 feet tall and 2 to 4 feet in diameter) with crooked, forked trunk; thin, open, irregular gray-green crown, often rounded, with large heavy cones.
Looks like: Coulter pine - ponderosa pine - Jeffrey pine - knobcone pine
Additional Range Information: Pinus sabiniana is native to North America. Range may be expanded by planting. See states reporting gray pine.
External Links: USDAFS Silvics of North America - USDAFS Additional Silvics - USDA Plants Database
All material © 2018 Virginia Tech Dept. of Forest Resources and Environmental Conservation; Photos and text by: John Seiler, Edward Jensen, Alex Niemiera, and John Peterson; Silvics reprinted from Ag Handbook 654