Glyptostrobus pensilis (Staunton ex D.Don) K.Koch,

국표에 없다.

Glyptostrobus pensilis, known in Chinese as 水松 (Shuǐ sōng), and also Chinese swamp cypress, is an endangered conifer, and the sole living species in the genus Glyptostrobus.

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 subtropical southeastern China, from Fujian west to southeast Yunnan, and also very locally in northern Vietnam and Laos.[3] It typically grows in river banks, ponds and swamps, growing in water up to 60 cm (24 in) deep.

Glyptostrobus pensilis - Wikipedia

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