Pinus strobus, botanical name of eastern white pine is a large pine native to eastern North America. It is occasionally known as simply white pine, northern white pine, or soft pine.
Like all members of the white pine group, Pinus subgenus Strobus, the leaves (needles) are in fascicles (bundles) of five (rarely 3 or 4), with a deciduous sheath. They are flexible, bluish-green, finely serrated, and 5-13 centimeters (2–5 in) long, and persist for usually about 18 months.
The cones are slender, 8-16 centimeters (3–6 in) long (rarely longer than that) and 4-5 centimeters (1.5–2 in) broad when open, and have scales with a rounded apex and slightly reflexed tip. The seeds are 4-5 millimeters (3/16 in) long, with a slender 15–20 mm (3/4 in) wing, and are wind-dispersed. Cone production peaks every 3 to 5 years. Mature trees can easily be 200 to 250 years old. Some white pines live over 400 years.