美叶菜豆树Radermachera frondosa

美叶菜豆树Radermachera frondosa

美叶菜豆树Radermachera frondosa

中文名(Chinese Name):美叶菜豆树
学名(Scientific Name):Radermachera frondosa Chun et How
英文名(English Common Name):
别名(Chinese Common Name):红花树、牛尾连、美丽菜豆树、小叶牛尾树
异名(Synonym):
科属(Family & Genus):紫葳科Bignoniaceae 菜豆树属Radermachera
形态特征(Description):乔木,高7-20米;小枝被微柔毛或渐无毛具皮孔。2回羽状复叶,长30厘米;叶柄、叶轴有槽纹,被粉状微毛;小叶5-7,纸质,阔或狭椭圆形或卵形,侧生小叶长4-6厘米,宽1.5-3厘米,顶生小叶较大,顶端尾状渐尖,基部阔楔形,千时黑褐色,背面苍白色,气除中脉背面被微柔毛外,其余全部无毛,被有很密的小斑点,叶基部有少数腺体,最后成凹陷成小穴,小叶柄纤细,顶生小叶柄长约15毫米,侧生小叶柄长5-6毫米。花序顶生,尖塔形,直立,长30厘米,3歧分叉,分枝易脱落;花白色,芽时褐红色;花梗长3-5毫米,被柔毛。花萼圆锥状,具胶粘质,在花蕾时封闭,长10-12毫米,在开花时期长15-18毫米,直径6-7毫米,3-4裂,裂片卵状三角形,长2-3毫米,短尖。花冠细筒状,长3.5-4厘米,直径2-2.5毫米,内外均无毛,裂片圆形,长约1.2厘米。花盘杯状,高约1毫米。雄蕊4,着生于花冠筒中部,花药黄色,线形,长7毫米。子房圆柱状,柱头2裂,胚,珠多数,多列。蒴果下垂,近圆柱状,长20-40厘米,粗5-6毫米。种子连翅长7-12毫米。花期几乎全年。
分布(Distribution):产广东(徐闻、增城)、海南、广西。生于低海拔至中海拔的疏林中。
用途(Use):叶供绿肥用;木材质轻,耐水湿,适作建筑材料、木桶、木盆、水车等。
引自中国植物志英文版FOC Vol. 18 Page 219      
Radermachera frondosa Chun & How, Acta Phytotax. Sin. 7: 75. 1958.
美叶菜豆树 mei ye cai dou shu| Bignoniaceae  | Radermachera
Trees 7-20 m tall; branchlets puberulent or glabrescent, lenticellate. Leaves 2-pinnately compound; leaflets 5-7, elliptic or ovate, 4-6 X 1.5-3 cm, papery, terminal ones large, base broadly cuneate, apex caudate-acuminate. Inflorescences paniculate, terminal, ca. 30 cm, 3-branched. Flowers white, red-brown in bud. Pedicel 3-5 mm, pubescent. Calyx 1-1.2 cm, 3- or 4-lobed; lobes ovate-triangular, 2-3 mm, acute. Corolla tubular, 3-4 X 2-2.5 cm, glabrous; lobes rounded, ca. 1.2 cm. Disc cupular, ca. 1 mm. Stamens 4, inserted high in corolla tube; anthers linear, ca. 7 mm. Ovules numerous, in several rows. Stigma 2-lobed. Capsule nodding, subterete, 20-40 cm X 5-6 mm. Seeds including wing 7-12 mm. Fl. and fr. throughout year.
* Forests. Guangdong, Guangxi, Hainan.
(责任编辑:徐晔春)

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