The Story of the Discovery and Naming of Dawn RedwoodĬorvallis: tree in Riverfront Park, just south of the Harrison Ave.Metasequoia flourished in the Miocene epoch of 25 to 5 million years ago and left its record embedded in rocks across the Oregon landscape. State Fossil of Oregon: The Oregon legislature designated the Metasequoia as the official state fossil in 2005. Zone 0 covers the harshest areas in Canada for plant species. 'Miss Grace' - more or less ground sprawling, but if staked, a small tree with weeping branches Hardiness zones are based largely on climate, particularly minimum temperatures.The microfibril angle in the S 2 layer of tracheid walls is large, even in outer rings, suggesting a cambial response to compressive rather than. 'Gold Rush' - bright yellow foliage in spring and retains much of the color throughout the summer The xylem of Metasequoia glyptostroboides Hu et Cheng is characterized by very low density (average specific gravity 027) and tracheids with relatively large dimensions (length and diameter).Several cultivars are available, including: Hardy to USDA Zone 4 Native to Sichuan (Szechuan, Szechwan), China. Metasequoia glyptostroboides Dawn redwood Winter hardiness zone: 5b (-26,0 to -23,4 C) Wind resistance: good Other resistances: resistant to frost (WH 1. Easy to transplant, performs best in moist, well-drained, slightly acid soils. Thought to have been extinct for millions of years, a Save the Redwoods League group discovered that this unusual member of the redwood family still exists in China, shedding its leaves in the fall. Pollination occurs in early spring and the seeds in the female cones are mature by the fall. (However, because of western Oregon's wet, but mild, winters, the cones are not dry enough to open and release the seeds until the following spring.) To the Chinese people, the dawn redwood is second only to the panda as a conservation icon. The female (seed) cones are solitary, oval, green then light brown, about 2 cm long male (pollen) cones are arranged in long pendant clusters, each cone is globose and about 5 mm long. Bark reddish brown when young, darker, fissuring, and exfoliating in strips when mature. The trees are monoecious, both male and female cones on an individual plant. Needles are arranged in opposite pairs, each is about 15 mm long, straight or slightly curved, bright green above, light green below. ![]() Tolerates wet soils, but does well in most average soils, as well. Thought to be extinct until discovered in one valley in China. Beautful verdant foliage in the spring, braided trunk relief and attractive orange needles in the fall. Soil: Tolerates a variety of soil conditions, including moist, well-drained, loamy, sandy, clay, and acidic. Metasequoia glytostroboides, the dawn redwood is a most exceptional species. Winter: Does not withstand cold too well. Deciduous conifer, 70-100 ft (21-30 m), excurrent, pyramidal, flat topped when mature. Summer: Pollen cones grow only on trees in areas with hot summers.
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