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雨树Samanea saman

时间:2018-08-14 07:36来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):雨树 学名( Scientific Name ): Samanea saman (Jacq.) Merr. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Pithecellobium saman (Jacq.) Benth. Enterolobium saman (Jacq.) Pra
中文名(Chinese Name):雨树
学名(Scientific Name):Samanea saman (Jacq.) Merr.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Pithecellobium saman (Jacq.) Benth.  Enterolobium saman (Jacq.) Prain  Calliandra saman (Jacq.) Griseb.  Mimosa saman Jacquem.  Inga saman (Jacq.) Willd.  Feuilleea saman (Jacq.) Kuntze
科属(Family & Genus):含羞草科,Mimosaceae)雨树属
形态特征(Description):无刺大乔木;树冠极广展,干高10-25米,分枝甚低;幼嫩部分被黄色短绒毛。羽片3-5(-6)对,长达15厘米;总叶柄长15-40厘米,羽片及叶片间常有腺体;小叶3-8对,由上往下逐渐变小,斜长圆形,长2-4厘米,宽1-1.8厘米,上面光亮,下面被短柔毛。花玫瑰红色,组成单生或簇生、直径5-6厘米的头状花序,生于叶腋;总花梗长5-9厘米;花萼长6毫米;花冠长12毫米;雄蕊20枚,长5厘米。荚果长圆形,长10-20厘米,宽1.2-2.5厘米,直或稍弯,不裂,无柄,通常扁压,边缘增厚,在黑色的缝线上有淡色的条纹;果瓣厚,绿色,肉质,成熟时变成近木质,黑色;种子约25颗,埋于果瓤中。花期8-9月。
分布(Distribution):我国台湾、海南和云南(西双版纳)有引种。原产热带美洲,现广植于全世界热带地区。
用途(Use):本种生长迅速,枝叶繁茂,可为园庭绿化树种。果味甜多汁,牛喜食之;在南美及西印度群岛常植作收场荫蔽树和饲料树。幼树木材松软,老树材质坚硬,可做车轮。
引自植物志英文版:FOC Vol. 10 Page 71
Samanea saman (Jacquin) Merrill, J. Wash. Acad. Sci. 6: 47. 1916.
雨树 yu shu| Fabaceae  | Samanea
Mimosa saman Jacquin, Fragm. Bot. 15. 1800; Albizia saman (Jacquin) F. Mueller; Enterolobium saman (Jacquin) Prain; Pithecellobium saman (Jacquin) Bentham.
Trees, 10-25 m tall. Branchlets puberulent to tomentose. Petiole 15-40 cm; pinnae 3-5(or 6) pairs, to 15 cm; glands at junctions of pinnae and leaflets; leaflets 3-8 pairs per pinna, asymmetrically oblong, 2-4 × 1-1.8 cm, abaxially pubescent, adaxially shiny, base half rounded, half truncate, apex rounded or obtuse, often emarginate and mucronulate. Heads 1-5, to­gether axillary, 5-6 cm in diam.; peduncles 5-6 cm. Marginal flowers pedicellate; calyx funnel-shaped, ca. 6 mm; corolla red or yellowish red, ca. 1.2 cm; stamens white at base, purple toward apex, ca. 3.5 cm; staminal tube shorter than corolla tube. Central flowers sessile; corolla to 1.2 cm; staminal tube longer than corolla. Legume black, oblong, compressed, 10-20 × 1.2-2.5 cm, sutures thickened, septate between seeds. Seeds brown, ellipsoidal, ca. 8 × 5 mm. Fl. Aug-Sep, fr. Dec.
Cultivated in Hainan, Taiwan, Yunnan [native to N part of tropical South America; planted throughout the tropics].




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