Glyptostrobus pensilis
Glyptostrobus pensilis | |
---|---|
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Gymnospermae |
Division: | Pinophyta |
Class: | Pinopsida |
Order: | Cupressales
|
Family: | Cupressaceae |
Genus: | Glyptostrobus |
Species: | G. pensilis
|
Binomial name | |
Glyptostrobus pensilis |
Glyptostrobus pensilis, known in Chinese as 水松 (Shuǐ sōng), and also Chinese swamp cypress, is an
Description
It is a medium-sized to large tree, reaching 30 m (98 ft) tall and with a trunk diameter of up to 1 m (3.3 ft), possibly more. The leaves are deciduous, spirally arranged but twisted at the base to lie in two horizontal ranks, 5–20 mm (0.20–0.79 in) long and 1–2 mm (0.039–0.079 in) broad, but 2–3 mm (0.079–0.118 in) long and scale-like on shoots in the upper crown. The cones are green maturing yellow-brown, pear-shaped, 2–3 cm (0.79–1.18 in) long and 1–1.5 cm (0.39–0.59 in) diameter, broadest near the apex. They open when mature to release the small, 5–20 mm (0.20–0.79 in) long, winged seeds. Like the related genus Taxodium, it produces 'cypress knees', or pneumatophores, when growing in water, thought to help transport oxygen to the roots.
Distribution and habitat
G. pensilis is native to
Conservation
The species is nearly
Gallery
-
Unripe cone
-
Ripe cones
-
Seedling in the Coastal Georgia Botanical Gardens, US
-
Young tree in the Oregon Garden in autumn; it is deciduous
-
Close-up of autumn foliage
-
A wet environment
-
400- to 500-year-old trees in Nanhua Temple
-
Bark of trunk
References
- . Retrieved 19 November 2021.
- ^ "Glyptostrobus pensilis". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2009-10-14.
- ^ a b McGuire, D. (28 May 2015). Saving the Endangered Chinese Swamp Cypress. Earth Island Journal. Retrieved 15 June 2019.
- ^ Fu, Liguo; Yu, Yong-fu; Adams, Robert P.; Farjon, Aljos. "Glyptostrobus pensilis". Flora of China. Vol. 4. Retrieved 2013-12-09 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ "Another leap towards the Barometer of Life". International Union for the Conservation of Nature. 10 November 2011.
- ^ Gymnosperm Database: Glyptostrobus. Retrieved 15 June 2019.