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Young cones of a blue spruce. The members of the pine family (pines, spruces, firs, cedars, larches, etc.) have cones that are imbricate (that is, with scales overlapping each other like fish scales). These pine cones, especially the woody female cones, are considered the "archetypal" tree cones. Image of a young pine cone center
The term bristlecone pine covers three species of pine tree (family Pinaceae, genus Pinus, subsection Balfourianae ). All three species are long-lived and highly resilient to harsh weather and bad soils. One of the three species, Pinus longaeva, is among the longest-lived life forms on Earth. The oldest of this species is more than 4,800 years ...
Description. 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 leaves ("needles") are bright green, in clusters of three (two in var. binata ), slender, 8–15 cm (3–6 in) long and ...
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 ( 51⁄2 ft) in trunk diameter on very productive sites. The tallest on record is a tree over 210 years old growing in Estonia which stands at ...
Tsuga (/ ˈ s uː ɡ ə /, [3] from Japanese 栂 (ツガ), the name of Tsuga sieboldii) is a genus of conifers in the subfamily Abietoideae of Pinaceae, the pine family.The English-language common name "hemlock" arose from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant poison hemlock.
P. e. var. densa (South Florida slash pine, Dade County pine) is found in the pine rocklands of southern Florida and the Florida Keys, including the Everglades. [10] [11] Leaves are nearly all in bundles of two, with longer needles. The cones are smaller, 5–12 cm (2.0–4.7 in), the wood is denser, and the tree has a thicker taproot. [9]
An old tree in Itasca State Park, Minnesota. Pollen cones in spring. Cone (scale in cm) Red pine boughs, showing yellowing and abscission of older foliage in the autumn. Tree roots anchor the structure and provide water and nutrients. The ground has eroded away around the roots of this young red pine tree.
Coulter pine ( Pinus coulteri ), or big-cone pine, is a native of the coastal mountains of Southern California in the United States and northern Baja California in Mexico. Isolated groves are found as far north as Clearlake, California on the flanks of Mt. Konocti and Black Diamond Mines Regional Preserve. It is named after Thomas Coulter, an ...
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