Thuja koraiensis

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Thuja koraiensis
Thuja koraiensis PAN foliage 2.JPG
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
(unranked): Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Cupressaceae
Genus: Thuja
Species:
T. koraiensis
Binomial name
Thuja koraiensis

Thuja koraiensis, also called Korean arborvitae, [2] is a species of Thuja , native to Korea and the extreme northeast of China (Changbaishan). Its current status is poorly known; the small population in China is protected in the Changbaishan Nature Reserve, as is the small population in Soraksan Nature Reserve in northern South Korea, but most of the species' range in North Korea is unprotected and threatened by habitat loss. [1] [3]

It is an evergreen shrub or small tree growing to 3–10 m tall. The foliage forms flat sprays with scale-like leaves 2–4 mm long (up to 15 mm long on strong-growing shoots), matt dark green above, and with broad, vivid white stomatal wax bands below. The cones are oval, yellow-green ripening red-brown, 7–11 mm long and 4–5 mm broad (opening to 6–9 mm broad), with 8-12 overlapping scales. [3]

It is occasionally grown as an ornamental tree for the contrast between the green upper and bright white lower sides of the foliage, though planting is limited by the low availability of seeds.

Related Research Articles

<i>Thuja</i> Genus of conifers

Thuja is a genus of coniferous trees in the Cupressaceae. There are five species in the genus, two native to North America and three native to eastern Asia. The genus is monophyletic and sister to Thujopsis. Members are commonly known as arborvitaes, thujas or cedars.

<i>Chamaecyparis thyoides</i> Species of plant

Chamaecyparis thyoides, a species of Cupressaceae, is native to the Atlantic coast of North America and is found from southern Maine to Georgia and along the Gulf of Mexico coast from Florida to Mississippi. It is one of two species of Chamaecyparis found in North America. C. thyoides resides on the East Coast and C. lawsoniana can be found on the West Coast. There are two geographically isolated subspecies, treated by some botanists as distinct species, by others at just varietal rank: Chamaecyparis thyoides thyoides and Chamaecyparis thyoides henryae (H.L.Li) E.Murray The species grows in forested wetlands where they tend to dominate the canopy. The trees are associated with a wide variety of other wetland species because of their wide north-south range. The remaining populations are now found mostly in remote locations that would be difficult to harvest, so its popularity as a source of lumber has decreased.

<i>Thuja occidentalis</i> Species of evergreen coniferous tree

Thuja occidentalis, also known as northern white cedar, eastern white cedar, or arborvitae, is an evergreen coniferous tree, in the cypress family Cupressaceae, which is native to eastern Canada and much of the north-central and northeastern United States. It is widely cultivated as an ornamental plant.

<i>Platycladus</i> Genus of conifers

Platycladus is a monotypic genus of evergreen coniferous trees in the cypress family Cupressaceae, containing only one species, Platycladus orientalis, also known as Chinese thuja, Oriental arborvitae, Chinese arborvitae, biota or Oriental thuja. It is native to northeastern parts of East Asia and North Asia, but is also now naturalised as an introduced species in other regions of the Asian continent.

<i>Thujopsis</i> Genus of conifers

Thujopsis is a genus of conifers in the cypress family (Cupressaceae), the sole member of which is Thujopsis dolabrata. It is endemic to Japan, where it is named asunaro (あすなろ). It is similar to the closely related genus Thuja (arborvitae), differing in the broader, thicker leaves and thick cones. It is also called hiba, false arborvitae, or hiba arborvitae.

<i>Pinus koraiensis</i> Species of conifer

Pinus koraiensis is a species of pine known commonly as the Korean pine. It is native to eastern Asia: Korea, northeastern China, Mongolia, the temperate rainforests of the Russian Far East, and central Japan. In the north of its range, it grows at moderate elevations, typically 600 to 900 metres, whereas further south, it is a mountain tree, growing at 2,000 to 2,600 m elevation in Japan. Other common names include Chinese pinenut.

<i>Pinus tabuliformis</i> Species of conifer

Pinus tabuliformis, also called Manchurian red pine, Southern Chinese pine or Chinese red pine, is a pine native to northern China from Liaoning west to Inner Mongolia and Gansu, and south to Shandong, Henan and Shaanxi, and also northern Korea. In some older texts the name is spelled "Pinus tabulaeformis".

<i>Prumnopitys ferruginea</i> Species of conifer

Prumnopitys ferruginea, commonly called miro, is an evergreen coniferous tree which is endemic to New Zealand. Before the genus Prumnopitys was distinguished, it was treated in the related genus Podocarpus as Podocarpus ferrugineus.

<i>Thuja standishii</i> Species of conifer

Thuja standishii is a species of thuja, an evergreen coniferous tree in the cypress family Cupressaceae. It is native to southern Japan, where it occurs on the islands of Honshū and Shikoku. It is a medium-sized tree, reaching 20–35 m tall and with a trunk up to 1 m diameter.

<i>Glyptostrobus pensilis</i> Species of conifer

Glyptostrobus pensilis, known in Chinese as 水松, and also Chinese swamp cypress, is the sole living species in the genus Glyptostrobus. It is native to subtropical southeastern China, from Fujian west to southeast Yunnan, and also very locally in northern Vietnam and Laos.

<i>Tetraclinis</i> Genus of conifers

Tetraclinis is a genus of evergreen coniferous trees in the cypress family Cupressaceae, containing only one species, Tetraclinis articulata, also known as Thuja articulata, sandarac, sandarac tree or Barbary thuja, endemic to the western Mediterranean region. It is native to northwestern Africa in the Atlas Mountains of Morocco, Algeria, and Tunisia, with two small outlying populations on Malta, and near Cartagena in southeast Spain. It grows at relatively low altitudes in a hot, dry subtropical Mediterranean climate.

<i>Abies koreana</i> Species of plant (Korean fir)

Abies koreana, the Korean fir, is a species of fir native to the higher mountains of South Korea, including Jeju Island. It grows at altitudes of 1,000–1,900 metres (3,300–6,200 ft) in temperate rainforest with high rainfall and cool, humid summers, and heavy winter snowfall.

<i>Picea koraiensis</i> Species of conifer

Picea koraiensis, the Korean spruce, is a species of spruce.

Thuja sutchuenensis, the Sichuan thuja, is a species of Thuja, an evergreen coniferous tree in the cypress family Cupressaceae. It is native to China, where it is an endangered local endemic in Chengkou County, on the southern slope of the Daba Mountains.

<i>Cupressus cashmeriana</i> Species of conifer

Cupressus cashmeriana, the Bhutan cypress or Kashmir cypress, is a species of evergreen conifer native to the eastern Himalaya in Bhutan and adjacent areas of Arunachal Pradesh in northeastern India. [ Now in vulnerable category, IUCN list retrieved in 2006 ]. It is also introduced in China and Nepal. It grows at moderately high altitudes of 1,250–2,800 metres (4,100–9,190 ft).

<i>Juniperus deppeana</i> Species of conifer

Juniperus deppeana is a small to medium-sized tree reaching 10–15 m tall. It is native to central and northern Mexico and the southwestern United States. It grows at moderate altitudes of 750–2,700 meters (2,460–8,860 ft) on dry soils.

<i>Cupressus macnabiana</i> Species of conifer

Cupressus macnabiana is a species of cypress in western North America.

<i>Calocedrus formosana</i> Species of conifer

Calocedrus formosana is a conifer endemic to Taiwan.

<i>Abies nephrolepis</i> Species of conifer

Abies nephrolepis, commonly known as Khingan fir, is a species of fir native to northeastern China, North Korea, South Korea, and southeastern Russia.

<i>Juniperus rigida</i> Species of conifer

Juniperus rigida, the temple juniper, is a species of juniper, native to northern China, Mongolia, Korea, Japan, and the far southeast of Russia, occurring at altitudes of 10–2,200 m. The species is also naturalized in the United States. It is closely related to Juniperus communis and Juniperus conferta, the latter sometimes treated as a variety or subspecies of J. rigida.

References

  1. 1 2 Kim, Y.-S.; Chang, C.-S.; Lee, H.; Gardner, M. (2011). "Thuja koraiensis". IUCN Red List of Threatened Species . 2011: e.T31245A9619180. doi: 10.2305/IUCN.UK.2011-2.RLTS.T31245A9619180.en . Retrieved 16 November 2021.
  2. English Names for Korean Native Plants (PDF). Pocheon: Korea National Arboretum. 2015. p. 656. ISBN   978-89-97450-98-5. Archived from the original (PDF) on 25 May 2017. Retrieved 17 December 2016 via Korea Forest Service.
  3. 1 2 Farjon, A. (2005). Monograph of Cupressaceae and Sciadopitys. Royal Botanic Gardens, Kew. ISBN   1-84246-068-4