Quercus acuta, the Japanese evergreen oak, is an oak native to Japan, South Korea, Taiwan, and China's Guizhou Province and Guangdong Province. Quercus acuta (Japanese Evergreen Oak) is a species of tree in the family Fagaceae. Quercus acuta, the Japanese evergreen oak, is an oak native to Japan, South Korea, Taiwan, and China's Guizhou Province and Guangdong Province.[3]. Japanese evergreen oak is native to Japan, South Korea, Taiwan, and parts of China. It should not be confused with the oriental or Asian white oak, Quercus aliena. Tolerant of many soil types and conditions, Performs best as a dense screen when given full sun exposure, Evergreen foliage emerges with pubescence before becoming dark green and leathery, Slow growth rate, but matures into a nice 30- to 40-foot tall evergreen, Solidly hardy in Zone 8 and, depending on the individual plant, perhaps hardy into some parts of Zone 7, The smooth gray bark can be heavily attacked by sapsuckers, potentially creating the opportunity for canker pathogens, Slow growth can be maximized by ensuring adequate soil moisture and fertility, If grown in full sun, tends to develop multiple leaders, so if a central leader is desired, structural pruning may be needed, If grown in partial shade, the canopy will be thinner and provide less screening, Wrapping the trunk with burlap may be necessary to deter sapsucker injury. Japanese evergreen oak reaches 20 to 30 feet in height with a 15 to 20-foot-spread and has an oval to rounded silhou-ette with dense, low branching and smooth, grey bark on the often multiple trunks. Bartlett’s Tree Topics blog follows in that tradition by offering a place to receive advice on trees, tree pests, tree preservation, and more. The wood of the Japanese evergreen oak is used for Japanese martial arts practice weapons. [7][8] This is due to its uniformly tight grain structure resulting from its continuous growing season. [4], In Japan, it is called akagashi (赤樫 - あかがし), but is also known by the names oogashi (大樫 - オオガシ) and oobagashi (大葉樫 - オオバガシ). The inconspicuous flowers It was introduced in the United States in 1878. View bios on each of our bloggers, or click on a name to go to that blogger’s profile page. This species, Quercus acuta, is often confused in commerce with other evergreen oak species such as Quercus glauca and Quercus myrsinifolia. Japanese evergreen oak is native to Japan, South Korea, Taiwan, and parts of China. They narrow to a long, finely-rounded tip. It was introduced in the United States in 1878. Like shirakashi (白樫 - しらかし) (Quercus myrsinifolia), whose wood is often called shirokashi outside of Japan, and other related sub-genera, Japanese Evergreen Oak, or akagashi, is a preferred choice for Japanese martial arts practice weapons such as bokken. The leading company in tree care service since 1907. The flowers are on a stiff 5 cm catkin. 10.2305/IUCN.UK.2019-1.RLTS.T62005627A136776235.en, TSUYUZAKI Shiro's Plant List - Hokkaido University, https://en.wikipedia.org/w/index.php?title=Quercus_acuta&oldid=983845221, Articles with Japanese-language sources (ja), Creative Commons Attribution-ShareAlike License, This page was last edited on 16 October 2020, at 15:53. Japanese Evergreen Oak is a photoautotroph. Sapwood is pale yellowish brown with a slightly reddish color. [5] [6]. It has a self-supporting growth form. It has simple, broad leaves. The dark green, glossy leaves, 2.5 to 5 inches long, have wavy-margins and a paler underside. New growth is purplish-brown. Individuals can grow to 11 m. Like shirakashi (白樫 - しらかし) (Quercus myrsinifolia), whose wood is often called shirokashi outside of Japan, and other related sub-genera, Japanese Evergreen Oak, or akagashi, is a preferred choice for Japanese martial arts practice weapons such as bokken. James Goedkoop: "Woods for Training Weapons". Due to its foliage and habitat, it looks rather unlike most other oaks. This species, Quercus acuta , is often confused in commerce with other evergreen oak species such as Quercus glauca and Quercus myrsinifolia . Leaves are dark and glossy above and yellowish beneath. Being a leader in the tree care industry means continually focusing on learning and innovation. The bark is smooth and dark grey. 植物和名ー学名インデックス YList - The YList Botanical Name - Scientific Name Index. Heartwood is pale reddish brown to reddish brown. Quercus acuta is usually bushy and densely domed, reaching a height of 14 meters.

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