Pine trees (Pinus spp., family Pinaceae) are cone-bearing evergreens native primarily to the Northern Hemisphere, though many species are now cultivated worldwide. Pines are fast-growing, hardy, and adaptable to poor soils, high elevations, and arid conditions, making them ideal for reforestation, timber production, and ornamental plantings. Certain species rely on fire for successful reproduction, which can be disrupted in areas where fire is suppressed.

All pines are classified as softwoods, but commercial forestry often distinguishes between hard and soft pines. Hard pines feature coarser, darker, and more durable wood, while soft pines are lighter and easier to work. Pine wood is a versatile natural resource used extensively in construction, paper manufacturing, and as fuel. Beyond industry, pines provide resin, turpentine, edible seeds, and decorative value—some species fetch premium prices as Christmas trees or landscape ornamentals. Their structural and chemical properties also make pine tissues excellent subjects for autofluorescence imaging in botanical and ecological studies.