Scots pine Pinaceae Pinus sylvestris L.   symbol: PISY
	Leaf: Evergreen needles, 1 1/2 to 3 inches long, with two stout, twisted needles per fascicle, blue-green with distinct stomatal bands. Flower: Monoecious; males cylindrical, yellow, in large clusters along twigs; females oval, yellow-green to purple. Fruit: Cones are ovoid, 1 1/2 to 2 1/2 inches long, yellow-brown in color and slightly stalked; umbo is somewhat armed, with a blunt spine; apophysis resembles a pyramid, particularly on basal scales; maturing in the fall. Twig: Moderately stout, green when young, changing to yellow-brown to olive-brown with large orangish, narrowly ovoid buds. Bark: Orange to orange-brown and scaly or peeling when young; later developing irregular gray or red-brown ridges and furrows. Upper crowns always show orange peeling bark. Form: A medium sized tree reaching up to 90 feet tall, often with a twisted or poorly formed trunk (depending on origin of seed). Young crowns are rounded; older crowns become round-topped.
	USDAFS Silvics of North America - USDAFS Additional Silvics - USDA Plants Database Pinus sylvestris is planted in the highlighted USDA hardiness zones to the left and may seed into the landscape. See a map of the states in which Scots pine has escaped (opens a new window).