剑麻Agave sisalana

剑麻Agave sisalana

中文名(Chinese Name):剑麻
学名(Scientific Name):Agave sisalana Perrine ex Engelm.
英文名(English Common Name):sisal hemp
别名(Chinese Common Name):菠萝麻
异名(Synonym):Agave amaniensis Trel. & Nowell;Agave segurae D.Guillot & P.Van der Meer;Agave sisalana var. armata Trel.;Agave sisalana f. armata (Trel.) Trel.
科属(Family & Genus):龙舌兰科(Agavaceae)龙舌兰属
形态特征(Description):多年生植物。茎粗短。叶呈莲座式排列,开花之前,一株剑麻通常可产生叶约200-250 枚,叶刚直,肉质,剑形,初被白霜,后渐脱落而呈深蓝绿色,通常长1-1.5米,最长可达2米,中部最宽10-15厘米,表面凹,背面凸,叶缘无刺或偶而具刺,顶端有1硬尖刺,刺红褐色,长2-3厘米。圆锥花序粗壮,高可达6米;花黄绿色,有浓烈的气味;花梗长5-10毫米;花被管长1.5-2.5厘米,花被裂片卵状披针形,长1.2-2厘米,基部宽6-8毫米;雄蕊6,着生于花被裂片基部,花丝黄色,长6-8厘米,花药长2.5厘米,丁字形着生;子房长圆形,长约3厘米,下位,3室,胚珠多数,花柱线形,长6-7厘米,柱头稍膨大,3裂。蒴果长圆形,长约6厘米,宽2-2.5厘米。剑麻开花年限因环境条件、栽培技术而异,正常情况下,一般6-7年生的植株便可开花,花期多在秋冬间,若生长不良,花期也可延迟,开花和长出珠芽后植株便死亡,通常花后不能正常结实,靠生长大量的珠芽进行繁殖。
分布(Distribution):原产墨西哥;我国华南及西南各省区引种栽培。
用途(Use):剑麻为世界有名的纤维植物,所含硬质纤维品质最为优良,具有坚韧、耐腐、耐碱、拉力大等特点,供制海上舰船绳缆、机器皮带、各种帆布、人造丝、高级纸、鱼网、麻袋、绳索等原料;植株含甾体皂苷元,又是制药工业的重要原料。
引自中国植物志英文版FOC Vol. 24 Page 270
Agave sisalana Perrine ex Engelmann, Trans. Acad. Sci. St. Louis. 3: 314. 1875.
剑麻 jian ma| Amaryllidaceae  | Agave
Stems short, thick. Leaves usually 200--250, in a basal rosette before inflorescence develops, glaucous when young, later dark blue-green, ensiform, straight, usually 1--1.5 m × 10--15 cm, fleshy, adaxially concave, abaxially convex, margin not spiny or rarely spiny, apex straight and tipped with a red-brown spine 2--3 cm. Panicle to 6 m, stout, usually bearing bulblets after anthesis. Flowers with a strong smell; pedicel 5--10 mm. Perianth yellowish green; tube 1.5--2.5 cm; lobes obovate-oblanceolate, 1.2--2 × 0.6--0.8 cm. Stamens inserted at base of perianth lobes; filament yellow, 6--8 cm; anther ca. 2.5 cm. Ovary oblong, ca. 3 cm. Style slender, 6--7 cm; stigma slightly capitate. Capsule oblong, ca. 6 × 2--2.5 cm.
Widely cultivated. S China [native to Mexico].
The leaves are used as a source of fiber.


剑麻Agave sisalana

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