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Dinghushan | Family List | Taxodiaceae | Taxodium

Taxodium distichum (L.) Rich.

落羽杉

Description from Flora of China

Trees deciduous, to 50 m tall; pneumatophores present or absent around trunk; trunk swollen and buttressed at base, strongly tapered upward, to 2 m d.b.h.; bark brown, reddish brown, or gray, peeling off in long strips; crown conical, finally broadly conical, or relatively narrow and pyramidal; main branches spreading horizontally or ascending; lateral branchlets 2-ranked, axis green in 1st year, turning brown or brownish red in 1st winter. Leaves 2-ranked on annual branchlets or not, light green adaxially, yellowish green or grayish green abaxially, turning dark reddish brown in autumn, linear and flat or subulate, 4-15 × ca. 1 mm, midvein depressed adaxially, raised abaxially, stomatal lines 4-8, apex acute or sharply pointed. Pollen cones borne in terminal, crowded, short, dense racemes or panicles 5-12 cm, shortly pedunculate, ovoid. Seed cones brownish yellow or white powdery, not glaucous, globose, oblong-globose, or ovoid, (1.4-)2-4 × (1.3-)1.8-3 cm; cone scales shield-shaped, woody, ± conspicuously longitudinally grooved at apex. Seeds brown or reddish brown, irregularly triangular-pyramidal, 1.2-2.6 × 0.5-2.3 cm, sharply ridged. Pollination Mar-Apr, seed maturity (Jul-)Oct.

The wood is used in buildings, ship construction, furniture manufacture, etc.

Used for afforestation on marshy soils, and cultivated as an ornamental. Anhui, Fujian, Guangdong, Guangxi, Henan, Hubei, Jiangsu, Jiangxi, Sichuan, Yunnan, Zhejiang [native to SE United States]

生活型: 乔木

栽培植物: 栽培

特征: 落叶乔木;叶线形,在小枝上排成羽状2列,和水杉近似,但水杉的叶和小枝均对生,本种为互生,速生树种,耐水湿

花期: 4

果期: 10--11

生境: 栽培

用途: 沙田河网低洼地及河旁堤岸护堤、绿化和速生优良用材树种;树形美观又为很好的观赏树;木材轻软 、密致、耐朽,为建筑、家具、枕木、电杆等优良用材

门中名: 种子植物门

亚门中名: 裸子植物亚门

中文别名: 落羽松


 

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