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Methuselah is a 4,856-year-old [1] Great Basin bristlecone pine (Pinus longaeva) tree growing high in the White Mountains of Inyo County in eastern California. [2] [3] It is recognized as the non-clonal tree with the greatest confirmed age in the world. [4]
The knobcone pine, Pinus attenuata (also called Pinus tuberculata), [2] is a tree that grows in mild climates on poor soils. It ranges from the mountains of southern Oregon to Baja California with the greatest concentration in northern California and the Oregon-California border.
Pinus aristata is a medium-size tree, commonly reaching 15 meters (49 ft) in height and occasionally as much as 20 m (66 ft) in their natural habitat.In favorable conditions they are straight and upright trees, but they become increasingly stunted, short, and twisted the closer they grow to timberline. [4]
A mature female big-cone pine (Pinus coulteri) cone, the heaviest pine cone A young female cone on a Norway spruce (Picea abies) Immature male cones of Swiss pine (Pinus cembra) A conifer cone, or in formal botanical usage a strobilus, pl.: strobili, is a seed-bearing organ on gymnosperm plants, especially in conifers and cycads.
In type theory, a typing environment (or typing context) represents the association between variable names and data types. More formally, an environment Γ {\displaystyle \Gamma } is a set or ordered list of pairs x , τ {\displaystyle \langle x,\tau \rangle } , usually written as x : τ {\displaystyle x:\tau } , where x {\displaystyle x} is a ...
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.
Ovulate cone Pollen cones, 2 cm scale bar. P. radiata is a coniferous evergreen tree growing to 15–30 m (50–100 ft) tall in the wild, but up to 60 m (200 ft) in cultivation in optimum conditions, with upward pointing branches and a rounded top.
The piñon pine (Pinus edulis) is a small to medium size tree, reaching 3.0–6.1 metres (10–20 ft) tall and with a trunk diameter of up to 80 centimetres (31 in), rarely more.