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Some red color may be seen in the fissures of the bark. The species is self pruning; there tend not to be dead branches on the trees, and older trees may have very long lengths of branchless trunk below the canopy. [5] The leaves are needle-like, dark yellow-green, in fascicles of two, [6] 12–18 centimetres (4 + 3 ⁄ 4 –7 inches) long, and ...
Young female cone Pinus sylvestris forest in Sierra de Guadarrama, central Spain. Pinus sylvestris is an evergreen coniferous tree growing up to 35 metres (115 feet) in height [4] and 1 m (3 ft 3 in) in trunk diameter when mature, [5] exceptionally over 45 m (148 ft) tall and 1.7 m (5 + 1 ⁄ 2 ft) in trunk diameter on very productive sites.
Mature Pinus pinea (stone pine); note umbrella-shaped canopy: Pollen cones of Pinus pinea (stone pine) A red pine (Pinus resinosa) with exposed roots: Young spring growth ("candles") on a loblolly pine: Monterey pine bark: Monterey pine cone on forest floor: Whitebark pine in the Sierra Nevada: Hartweg's pine forest in Mexico
Red pines were considered a fast-growing cash crop tree, an excellent replacement for the beleaguered white pines. Ironically, red pines are now falling prey to an invasive insect - the red pine ...
Pinus, the pines, is a genus of approximately 111 extant tree and shrub species. The genus is currently split into two subgenera: subgenus Pinus (hard pines), and subgenus Strobus (soft pines).
Pinus ponderosa, commonly known as the ponderosa pine, [3] bull pine, blackjack pine, [4] western yellow-pine, [5] or filipinus pine, [6] is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.
The Taiwan red pine is a large tree, with a straight trunk up to 35 metres (115 feet) tall and 80 centimetres (2 + 1 ⁄ 2 ft) in diameter. Needles are in bundles of two. Cones are 6–7 cm (2 + 1 ⁄ 4 – 2 + 3 ⁄ 4 inches) long.
Chinese botanists say they may have an explanation for a mass die-off of plantation pine trees across the country that has baffled scientists for 50 years - it could be all in the genes.The Pinus ...