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): Gymnosperms
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Cupressaceae
Genus: Thuja
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.

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

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

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<i>Platycladus</i> Genus of conifers

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

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  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