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Thuja plicata
It is a large to very large tree, ranging up to 65–70 metres (213–230 ft) tall and 3–4 metres (9.8–13 ft) in trunk diameter, exceptionally even larger.[3][4] Trees growing in the open may have a crown that reaches the ground, whereas trees densely spaced together will only exhibit a crown at the top, where light can reach the leaves.[5] It is long-lived; some individuals can live well over a thousand years, with the oldest verified being 1,460 years.[3][4] The foliage forms flat sprays with scale-like leaves in opposite pairs, with successive pairs at 90° to each other. The foliage sprays are green above, and green marked with whitish stomatal bands below; they are strongly aromatic, with a scent reminiscent of pineapple when crushed. The individual leaves are 1–4 mm long and 1–2 mm broad on most foliage sprays, but up to 12 mm long on strong-growing lead shoots.[3][4] The cones are slender, 10–18 mm long and 4–5 mm broad, with 8–12 (rarely 14) thin, overlapping scales; they are green to yellow-green, ripening brown in fall about six months after pollination, and open at maturity to shed the seeds. The seeds are 4–5 mm long and 1 mm broad, with a narrow papery wing down each side. The pollen cones are 3–4 mm long, red or purple at first, shedding yellow pollen in spring.[3][4]
Natural forests
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