Monterey pine Pinaceae Pinus radiata D. Don symbol: PIRA2 Leaf: Evergreen needles, 4 to 6 inches long, 3 per fascicle, slender; shiny green; persist 3 years. Flower: Species is monoecious; male cones in yellow spikes; female cones dark purple. Fruit: Egg-shaped, 3 to 6 inches long, asymmetrical (especially at the base), shiny brown, often clustered in dense whorls, serotinous (remain closed on the tree for many years); cone scales thick and rounded, tipped with a small prickle. Twig: Slender and dark orange. Bark: Mature bark is dark reddish brown; thick with deep ridges and furrows. Form: Straight trunk with irregular, open crown, 50 to 100 feet tall and 1 to 3 feet in diameter. Cone clusters are often conspicuous on branches and trunk. Looks like: ponderosa pine - knobcone pine - Jeffrey pine - Coulter pine Additional Range Information: Pinus radiata is native to North America. Range may be expanded by planting. See states reporting Monterey pine. External Links: USDAFS Silvics of North America USDAFS Additional Silvics USDA Plants Database