Pine
Pines are evergreen conifers with needles in bundles and woody cones.
Pines are coniferous trees or shrubs in the genus Pinus, the sole genus of the subfamily Pinoideae within the family Pinaceae. They are evergreen, resinous plants with needle-like leaves bundled in clusters, and produce seeds in woody cones. Pines are widely distributed across the Northern Hemisphere, dominating large areas of taiga and occurring in diverse habitats including Mediterranean regions and dry tropical forests. They provide extensively used timber, edible pine nuts, and resin used for flavoring retsina wine.
- Scientific name
- Pinus
- Family
- Pinaceae
- Subfamily
- Pinoideae
- Tallest species
- Sugar pine (Pinus lambertiana) at 83.45 m
- Native range
- Northern Hemisphere
Lore & Background
The tallest pine is a sugar pine in Yosemite National Park, measuring 83.45 m. Pines have four types of leaves: seed leaves (cotyledons), juvenile leaves, scale leaves, and adult needles bundled in fascicles of one to seven, usually two to five. Needles persist for 1.5–40 years depending on species.
Reader's Guide
Pines are among the most economically and ecologically important tree genera. Their timber is extensively used worldwide, and their seeds—pine nuts—are harvested for culinary uses such as pesto. Pine resin flavors retsina wine. Ecologically, pines dominate vast boreal forests and are adapted to many environments, including fire-prone regions; some species are fire-resistant or fire-dependent, with serotinous cones that open only after fire to release seeds onto cleared ground. The genus has a complex evolutionary history marked by hybridization, wind pollination, and weak reproductive isolation. Pines are divided into two subgenera: hard pines (subg. Pinus) with resin-sealed cone scales and persistent needle sheaths, and soft pines (subg. Strobus) without resin seals and with deciduous sheaths. Mexico holds the highest species diversity. Pines have been introduced to temperate and subtropical regions worldwide, where some species have become naturalized or invasive.
Did You Know?
- Pine needles are bundled in clusters called fascicles, usually numbering two to five per fascicle.
- Some pines have serotinous cones that open only after a forest fire melts the resin binding them shut.
- The tallest pine is a sugar pine in Yosemite National Park, reaching 83.45 m.
Frequently Asked Questions
What is Pine?
Pine refers to the genus Pinus, a group of evergreen coniferous trees and shrubs recognized by their needle-like leaves that grow in tight bundles and their woody seed cones. They are the sole genus in the subfamily Pinoideae within the family Pinaceae.
What is the tallest pine species?
The sugar pine (Pinus lambertiana) holds the record at 83.45 meters tall. It is native to the Pacific coast regions of western North America.
Why are pines important to humans?
Pines supply widely used timber for construction and manufacturing, as well as edible seeds commonly called pine nuts. Their resin has also been a valued ingredient for centuries, most notably in flavoring retsina wine.
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