Chamaecyparis formosensis

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Chamaecyparis formosensis
Chamaecyparis formosensis.jpg
Scientific classification
Kingdom: Plantae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Cupressaceae
Genus: Chamaecyparis
Species: C. formosensis
Binomial name
Chamaecyparis formosensis
Matsum.

Chamaecyparis formosensis (Formosan cypress, Taiwan cypress;[1] Chinese: 紅檜/红桧 hong kuai) is a species of Chamaecyparis, endemic to Taiwan, where it grows in the central mountains at moderate to high altitudes of 1000–2900 m. It is threatened by habitat loss and over-cutting for its valuable timber.[1][2][3]

Growth

It is a slow-growing, but long-lived and ultimately large to very large coniferous tree growing to 55–60 m tall with a trunk up to 7 m in diameter. The bark is red-brown, vertically fissured and with a stringy texture. The foliage is arranged in flat sprays; adult leaves are scale-like, 1–3 mm long, with pointed tips, green both above and below with only an inconspicuous stomatal band at the base of each scale-leaf; they are arranged in opposite decussate pairs on the shoots. The juvenile leaves, found on young seedlings, are needle-like, 4–8 mm long, soft and glaucous bluish-green. The cones are ovoid-oblong, 6–12 mm long and 4–8 mm diameter, with 8–16 scales arranged in opposite pairs, maturing in autumn about 7–8 months after pollination.[2]

Related species

It is most closely related to the Japanese Chamaecyparis pisifera (sawara cypress), which differs in smaller globose cones 4–8 mm long with 6–10 scales.[2]

Characteristics

The wood is soft, very resistant to decay, and strongly scented; it is highly valued in traditional Taiwanese building, particularly for temples and shrines. This has led to excessive harvesting, resulting in the species now being endangered. A small number of the oldest and largest specimens are protected as national monuments, but much of the general population of the species still remains unprotected.[2]

References

  1. ^ a b c Zhang, D & Christian, T. 2013. Chamaecyparis formosensis. The IUCN Red List of Threatened Species. Version 2015.2. Downloaded on 01 September 2015.
  2. ^ a b c d Farjon, A. (2005). Monograph of Cupressaceae and Sciadopitys. Kew: Royal Botanic Gardens. ISBN 1-84246-068-4. 
  3. ^ Flora of China: Chamaecyparis formosensis

External links

  • Conifers Around the World: Chamaecyparis formosensis - Taiwan sawara cypress.
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