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The branches are horizontal, produced in whorls of five or six. The leaves are spirally arranged, scale-like or awl-like, 6–12 centimetres (2–5 in) long and 1.5–2 cm (5 ⁄ 8 – 3 ⁄ 4 in) broad at the base, with a sharp tip; leaves on young trees are shorter (under 9 cm or 4 in) and narrower (under 1.5 cm or 5 ⁄ 8 in).
Low pH conditions support formation of an iron hardpan, preventing the trees from setting deep roots and preventing internal drainage of soil water. As a result, the pine trees in the area are rarely more than three or four feet high, in a sort of natural bonsai effect. Many of the tree trunks, though only an inch thick, contain 80 or more ...
It is a small to medium-sized evergreen tree, reaching 20 m (66 ft) tall. [4] The leaves are strap-shaped, 6–12 cm (2.4–4.7 in) long, and about 1 cm broad, with a central midrib. The cones are borne on a short stem, and have two to four scales, usually only one (sometimes two) fertile, each fertile scale bearing a single apical seed 10–15 mm
The Huon pine is a slow-growing, but long-lived tree; some living specimens of this tree are in excess of 2,000 years old. [6] It grows to 10 to 20 metres (33 to 66 ft) tall, exceptionally reaching 30 m (98 ft), with arching branches and pendulous branchlets.
The fallen tree visible here is a stone pine (Pinus pinea), a species that has survived for many years alongside the river’s extremely acidic waters, with a pH around 2.
Pinus brutia is a medium-size tree, reaching 20–35 metres (66–115 feet) tall with a trunk diameter of up to 1 m (3 + 1 ⁄ 2 ft), exceptionally 2 m (6 + 1 ⁄ 2 ft). The young bark is thin and red-orange, maturing to grey-brown to orange in color, fissured to flaky in texture.
A dendrochronology, based on these trees and other bristlecone pine samples, extends back to about 9000 BC, albeit with a single gap of about 500 years. [20] [3] An older bristlecone pine was reportedly discovered by Tom Harlan in 2009, based on a sample core collected in 1957. According to Harlan, the tree was 5,062 years old and still living ...
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