dawn redwood tree metasequoia glyptostroboides

DAWN REDWOOD TREE METASEQUOIA GLYPTOSTROBOIDES FREE

The pollen cones are 0.25 inch (6 mm) long, produced on long spikes in early spring they are only produced on trees growing in regions with hot summers. The leaves are opposite, 0.4-1.25 inches (1–3 cm) long, and bright fresh green, turning foxy red-brown in fall. It is a fast-growing tree to 130–150 feet (40–45 m) tall and 6 feet (2 m) in trunk diameter in cultivation so far (with the potential to grow even higher). The bark and foliage are similar to Sequoia, but Metasequoia is deciduous like Taxodium distichum (bald cypress), and, similarly, older specimens form wide buttresses on the lower trunk.

Before its discovery, the taxon was believed to have become extinct during the Miocene when it was discovered extant, it was heralded as a ' living fossil'.ĭawn redwood foliage - note opposite arrangement The trees are well known from late Cretaceous to Miocene strata, but no fossils are known after that. Large petrified trunks and stumps of the extinct Metasequoia occidentalis (sometimes identified as Sequoia occidentalis) also make up the major portion of Tertiary fossil plant material in the badlands of western North Dakota. It is also hypothesized that the change from evergreen to deciduous trait occurred before colonizing the high latitudes and was the reason Metasequoia was dominant in the north. During three months in the summer, the sun would shine continuously, while three months of the winter would be complete darkness. Given that the high latitudes in this period were warm and tropical, it is hypothesized that the deciduous trait evolved in response to the unusual light availability patterns, not to major seasonal variations in temperature. Metasequoia was likely deciduous by this time. During the Paleocene and Eocene, extensive forests of Metasequoia occurred as far north as Strathcona Fiord on Ellesmere Island and sites on Axel Heiberg Island (northern Canada) at around 80° N latitude. Fossils are known from the Cenomanian onwards. Metasequoia redwood fossils are known from many areas in the Northern Hemisphere more than 20 fossil species have been named (some were even identified as the genus Sequoia), but are considered as just three species, M. foxii, M. milleri, and M. occidentalis. 4 Metasequoia in gardens, parks and streets.Sequoioideae and several other genera have been transferred from the former family Taxodiaceae to Cupressaceae based on DNA analysis. M. glyptostroboides is the only living species in its genus, but three fossil species are known. Together with Sequoia sempervirens (coast redwood) and Sequoiadendron giganteum (giant sequoia) of California, Metasequoia is classified in the Cupressaceae subfamily Sequoioideae. Since its rediscovery in 1944, the dawn redwood has become a popular ornamental, with examples found in various parks in a variety of countries.

Local villagers refer to the original tree from which most others derive as Shuǐshān (水杉）, or 'water fir', which is part of a local shrine. Although the shortest of the redwoods, it grows to at least 165 feet (50 meters) in height. The living species Metasequoia glyptostroboides is native to Lichuan county in Hubei province, China.

DAWN REDWOOD TREE METASEQUOIA GLYPTOSTROBOIDES FREE

Relatively free of pests, except for a canker which has been reported recently.Metasequoia, or dawn redwoods, is a genus of fast-growing deciduous trees, one of three species of conifers known as redwoods. The cultivar 'National' grows to 85 feet tall. Propagation is from seeds or cuttings taken in late summer.

It appears to be adapted to clay soil and grows best when located on continually moist sites with slightly acidic soil.

The preferred soil is moist and moderately fertile, but Metasequoia does not appear to be impacted by drought, having survived in urban landscapes during recent summer droughts. The tree grows rapidly but late season growth may be injured by early frosts. Lower branches should be left on the tree for most other uses to enjoy the graceful form and delightful foliage. The tree has been used primarily as a specimen, but there are reports of it being very tolerant of air pollution and it has done well as a street tree with lower branches removed. Pest resistance: resistant to pests/diseases Verticillium wilt susceptibility: resistant Soil tolerances: clay sand loam acidic extended flooding well-drained Trunk and Branches Trunk/bark/branches: branches droop very showy typically one trunk thorns Fruit characteristics: does not attract wildlife not showy fruit/leaves not a litter problem

Dawn redwood tree metasequoia glyptostroboides