Platycladus

Platycladus is a genus of coniferous trees in the cypress family Cupressaceae. The genus is monotypic, containing only one species, Platycladus orientalis, commonly known as the Chinese thuja or Oriental arborvitae. This species is native to northeastern Asia, including parts of China, Korea, and the Russian Far East.

Description

Platycladus orientalis is an evergreen tree that can grow up to 15–20 meters tall, with a trunk diameter of up to 1 meter. The bark is reddish-brown, peeling in vertical strips. The leaves are scale-like, 2–4 mm long, and arranged in decussate pairs. The cones are 15–25 mm long, with 6–8 scales arranged in opposite pairs; they are green when immature, maturing to brown about eight months after pollination.

Habitat and Distribution

Platycladus orientalis is found in a variety of habitats, including mountainous regions, plains, and river valleys. It is often planted as an ornamental tree in gardens and parks due to its attractive foliage and form. The species is also used in traditional Chinese medicine.

Uses

The wood of Platycladus orientalis is durable and resistant to decay, making it valuable for construction, furniture, and carving. The tree is also used in hedging and topiary due to its dense foliage and ability to be shaped.

Cultivation

Platycladus orientalis is relatively easy to cultivate and is tolerant of a wide range of soil types, though it prefers well-drained soils. It is drought-tolerant once established and can withstand urban pollution, making it a popular choice for city planting.

Conservation Status

The species is not currently listed as threatened, but habitat loss and over-exploitation in some areas have raised concerns about its long-term conservation.

Gallery

• Platycladus orientalis foliage.jpg

  Foliage of Platycladus orientalis

• Platycladus orientalis cone.jpg

  Cone of Platycladus orientalis

See also

• Cupressaceae
• Conifer
• Traditional Chinese medicine