ໄມ້ຫີ້ງທາມ / Swamp Cypress

Use
Income
Ornamental
Shelter
Scientific Name / Family
Glyptostrobus pensilis (Staunton ex D.Don) K.Koch / Cupressaceae
Synonyms
Cuprespinnata heterophylla (Brongn.) J. Nelson
Cuprespinnata sinensis (J. Forbes) J. Nelson
Cupressepinnata heterophylla (Brongn.) J.Nelson
Cupressepinnata sinensis (J.Forbes) J.Nelson
Cupressus nucifera Carrière
Glyptostrobus aquaticus (Roxb.) R.Parker
Glyptostrobus heterophyllus (Brongn.) Endl.
Glyptostrobus sinensis A.Henry ex Loder
Juniperus aquatica Roxb.
Sabina aquatica (Roxb.) Antoine
Schubertia nucifera Denham ex Endl.
Taxodium heterophyllum Brongn.
Taxodium japonicum Dehnh. ex Gordon
Taxodium japonicum var. heterophyllum Brongn.
Taxodium sinense J.Forbes
Thuja lavandulifolia Poir.
Thuja pensilis Abel
Thuja pensilis Staunton ex D.Don
Other Names
Chinese swamp cypress
Chinese Water Fir
Chinese water-pine
Conservation Status
Critically Endangered
Botanical Description

Tree to 20 m tall, trunk distinctly enlarged to the ground, to 1 m dbh. Crown irregularly conical. Pneumatophores grow from lateral roots, and spread to 5–6 m. Bark thick, greyish–brown, longitudinally fissured. Shoots of two kinds, long and short. Leaves on the long shoots overlapping and scale-like; leaves on the short shoots needle-like, enlarged at the base, quadrangular in cross section, 8–12 mm long, on one-year shoots 2-ranked. Pollen strobiles terminal on short shoots. Seed cones terminal on lateral shoots, ovate, 12–18 mm long, stalked  Seeds ovate, 5–6 mm long, terminated by small wing 3 mm long. Pollination January–March, seeds September–November, cones persisting until following spring (Averyanov et al. 2014)

Description of Use

The rather soft, yellowish wood is like most cupressaceous wood decay resistant and finds uses in China ranging from furniture to building of bridges. The wood of the roots is very light and due to its buoyancy it is used in China to make life-saving rings. This species is widely cultivated in southern China and planted along rivers and canals as well as in parks; except for the latter localities mostly to harvest the timber followed by replanting. In Viet Nam wood is highly valued for crafts and is reputed to have anti-cancer properties although there is no scientific evidence to support this ( Thomas et al. 2011)

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