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Abies magnifica is a large evergreen tree typically up to 40–60 metres (130–200 ft) tall and 2 m (6 ft 7 in) trunk diameter, rarely to 76.5 m (251 ft) tall and 3 m (9 ft 10 in) diameter, with a narrow conic crown. The bark on young trees is smooth, grey, and has resin blisters
Many are also decorative garden trees, notably Korean fir and Fraser's fir, which produce brightly coloured cones even when very young, still only 1–2 m (3 ft 3 in – 6 ft 7 in) tall. Many fir species are grown in botanic gardens and other specialist tree collections in Europe and North America. [20]
A California Native American myth explains that each three-ended bract is the tail and two tiny legs of a mouse that hid inside the scales of the tree's cones during forest fires, and the tree was kind enough to be its enduring sanctuary. A Douglas-fir species, Pseudotsuga menziesii, is the state tree of Oregon.
Looking up into the branch structure of a Pinus sylvestris tree Animation of zooming into the leaf of a Sequoia sempervirens (Californian Redwood). Plant morphology "represents a study of the development, form, and structure of plants, and, by implication, an attempt to interpret these on the basis of similarity of plan and origin". [4]
The dead tree tops sometimes fork into new growth. [4] The bark is 5 centimetres (2 inches) thick, reddish to gray (but purple within), furrowed, and divided into slender plates. [ 4 ] The leaves are needle-like, flattened, 3–6 cm ( 1 + 1 ⁄ 8 – 2 + 3 ⁄ 8 in) long and 2 millimetres ( 3 ⁄ 32 in) wide by 0.5 mm thick, glossy dark green ...
The lowest branches can be observed growing 1 m (3 ft 3 in) above ground level. [4] The leaves are flat and needle-like, 1.5–3 centimetres ( 5 ⁄ 8 – 1 + 1 ⁄ 8 in) long, glaucous green above with a broad stripe of stomata , and two blue-white stomatal bands below; the fresh leaf scars are reddish (tan on the inland variety). [ 4 ]
All the branches of a tree at every stage of its height when put together are equal in thickness to the trunk [below them]. [39] A more general version states that when a parent branch splits into two or more child branches, the surface areas of the child branches add up to that of the parent branch. [40]
Other studies determined that seedfall in clearcuts beyond 80 m (260 ft) from seed trees was about 3% of seedfall in uncut stands where seed trees are close together. Well-stocked stands have resulted from seedfall from sources 1–2 km (0.62–1.24 mi) distant, but most Douglas-fir seeds fall within 100 m (330 ft) of their source.
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