dawn redwood tree metasequoia glyptostroboides

DAWN REDWOOD TREE METASEQUOIA GLYPTOSTROBOIDES SKIN
DAWN REDWOOD TREE METASEQUOIA GLYPTOSTROBOIDES FULL

Like the tamarack, it’s a conifer, but drops its needles in fall. This magnificent tree dates back to the dinosaur age and was thought to be extinct until discovered in China in the 1940s. Tolerates clay soil, wet soil air pollution, deer resistant These seed orchards are the most significant hope for the future of this species outside of China.Grown mostly for its large stature, fall yellow needle color and interesting colored bark This collection was planted in two locations: Dawes Arboretum in Ohio, and Rutgers University in New Jersey.

DAWN REDWOOD TREE METASEQUOIA GLYPTOSTROBOIDES FULL

In the 1990's botanists from the United States gathered seeds from every wild population of dawn redwoods in China, capturing the full genetic diversity of this incredible species. Beyond their potential medical applications, dawn redwoods are increasingly used for afforestation projects as well, particularly across China where they are planted in water forests.īecause of their small population in the wild, however, dawn redwoods are at risk of genetic bottlenecking, or inbreeding - a road leading to extinction. This is no coincidence, either: it has likely survived nearly unchanged since the age of the dinosaurs because of this cocktail of phenolic compounds that promote its survival - many of which happen to benefit humans as well.

DAWN REDWOOD TREE METASEQUOIA GLYPTOSTROBOIDES SKIN

It also happens to contain a rich collection of medically important compounds (some previously unknown to science) that might prove to be useful in treating everything from cancer and skin allergies to the flu. Most amazingly, recent studies into its history - including looking at wood preserved in amber - have shown that this tree likely has remained unchanged even on a molecular level for millions of years.

A rare deciduous conifer, its foliage turns gorgeous colors in the fall before dropping to create a stunning bronze carpet of soft needles on the ground. Metasequoia is hardy to at least hardiness zone 5: anyone from Vermont to Alabama, or San Francisco to Vancouver, can grow and enjoy this beautiful tree. Notably they have proven to be highly tolerant of urban conditions, and are now commonly found in cities and gardens throughout temperate zones. They quickly entered the nursery trade, where they were promoted as resilient ornamentals. Seeds from the largest trees were collected and brought back to arboreta in the United States, where they were grown and distributed throughout gardens across the continent. Some had grown for countless generations on the edges of the village’s rice paddies, while other trees grew in the mountains alongside oak, beech, sassafras, rhododendron, azalea, iris, and hydrangea. Although they are the smallest of the redwoods, the mature trees (which can live for many centuries) reach heights of over 200 feet with 11-foot-thick trunks. Tea made from the bark cured people who were close to death. They built shrines beneath them where they left offerings. The villagers who lived near the trees called them shui-shan (水杉, meaning ‘water fir’) and had long revered them as gods. When botanist Wang Zhan, dodging civil war and foreign invasion, discovered Metasequoia trees growing in a remote valley of China in 1943, it was like someone had found a living dinosaur. Then, miraculously, it was found to still be alive. When it was described by a Japanese paleontologist in 1941, the extinct tree was given the name ‘ Metasequoia’, meaning ‘Redwood-like tree.’ It then disappeared from the fossil record completely around 20 million years ago. Once the earth began to cool, it migrated south over the Beringia Corridor into East Asia. dropping its foliage seasonally) during this period as a response to the Arctic circle’s light cycles, in which winter brings 3 months of darkness. Some scientists believe that the species became deciduous (i.e. During the Paleocene-Eocene Thermal Maximum event 52 million years ago (in which a massive spike in CO2 levels caused global temperatures to rise by 5 ☌ almost overnight), dawn redwood was forced to migrate north to the Arctic circle where the climate was temperate, if not subtropical, and became a major part of the Arctic deciduous forest. The earliest fossils are older than 150 million years, and toward the end of the Cretaceous it had become one of the most dominant trees in northern forests, particularly across what would later become North America. Dawn redwood ( Metasequoia glyptostroboides) is a truly unique tree - often called a 'living fossil' due to its incredible age.

Dawn redwood tree metasequoia glyptostroboides