Michigan State Tree – Eastern White Pine – Pinus strobus
Eastern White Pine Pinaceae Pinus strobus
Leaf: Evergreen, 3 to 5 inches long, with five blue-green, slender needles per
fascicle. A fascicle sheath is not present. Needles appear blue because of 3 or
more lines of stomata.
Flower: Monoecious; males cylindrical, yellow, in clusters near branch tips;
females light green, tinged in red, at ends of branches.
Fruit: Cones are 4 to 7 inches long, cylindrical, with thin, rounded cone scales,
very resinous. Cones are borne on a long stalk. Maturing August to September.
Twig: Slender, gray-green to orange-brown in color.
Bark: On young trees; thin, smooth and gray-green in color. Later becoming
thick, reddish-brown to gray-brown with prominent ridges and furrows.
Form: A large tree with a very straight stem. The crown is conical when young,
later developing wispy, horizontal branches.
Conservation; Photos and text by: John Seiler, Edward Jensen,
Alex Niemiera, and John Peterson;Silvics reprinted from Ag
Handbook 654; range map source information