细枝木麻黄Casuarina cunninghamiana

细枝木麻黄Casuarina cunninghamiana

细枝木麻黄Casuarina cunninghamiana

中文名(Chinese Name):细枝木麻黄
学名(Scientific Name):Casuarina cunninghamiana Miq.
英文名(English Common Name):river sheoak
别名(Chinese Common Name):银线木麻黄
异名(Synonym):Casuarina equisetifolia var. microcarpa F.Muell.
科属(Family & Genus):木麻黄科(Casuarinaceae)木麻黄属
形态特征(Description):乔木,高可达25米;大树根部常有萌蘖;树干通直,直径约40厘米;树冠呈尖塔形;树皮灰色,稍平滑,小块状剥裂或浅纵裂,内皮淡红色;枝暗褐色,近平展或前端稍下垂,近顶端处常有叶贴生的白色线纹;小枝密集,暗绿色,干时灰绿色或苍白绿色,纤细,稍下垂,长15-38厘米,直径0.5-0.7毫米,具浅沟槽及钝棱,节间长4-5毫米,节韧不易抽离,每节上有狭披针形、紧贴的鳞片状叶8-10枚。花雌雄异株;雄穗状花序生于小枝顶端,圆柱形,长1.2-2厘米;苞片下部被毛,上部无毛或有极短的毛;花被片1枚,长约1毫米,顶端兜状;花丝长约1.5毫米,花药两端浅缺;雌花序生于侧生的短枝顶,密集,倒卵形;苞片卵状披针形,除边缘外无毛。球果状果序小,具短柄,椭圆形或近球形,长7-12毫米,两端截平;小苞片阔椭圆形,顶端急尖;小坚果连翅长3-5毫米。花期4月,果期6-9月。
分布(Distribution):广西、广东、福建及台湾有栽培,原产澳大利亚。
用途(Use):树形美观,常栽植为行道树或观赏树。木材硬重,用途同木麻黄,但材质稍逊。
引自中国植物志英文版FOC Vol. 4 Page 107
Casuarina cunninghamiana Miquel, Rev. Crit. Casuar. 56, plate 6A. 1848.
细枝木麻黄 xi zhi mu ma huang | Casuarinaceae  | Casuarina
Trees dioecious, to 25(-35) m tall, often with suckers from roots. Trunk straight, to ca. 40 cm d.b.h.; crown pyramidal; bark finely fissured and scaly, gray, adaxially pale red. Ultimate branchlets spreading to slightly pendulous, dark green, grayish green, or glaucous-green when dry, 15-38 cm × 0.5-0.7 mm; articles 4-5 mm. Leaves erect, 8(-10) per whorl, narrowly lanceolate. Male spikes 1.2-2(-4) cm. Cones ellipsoid or subglobose, 7-12 mm, truncate at both ends; apex of bracteoles acute. Samaras 3-5 mm including wing. Fl. Apr, fr. Jun-Sep. 2n = 18*.
Cultivated in Fujian, Guangdong, Guangxi, Hainan, Taiwan, Zhejiang [native to Australia]
Only subsp. cunninghamiana is cultivated in China. Used for timber.
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