早黄(银桂)


树枝和树叶

Branches and Leaves


  •小乔木,高4~8m; 树冠圆球形或卵圆形;枝条较稀疏,开张角度大。树干较光滑,树皮有菱形皮孔,排列密,稍隆起。长势中等。叶狭长,长椭圆形或椭圆状披针形,长9~12 cm, 宽3~3 . 5cm;  革质,叶面平展,深绿色,有光泽;基部楔形;先端渐尖,叶尖有时反曲;叶缘全缘或稀有不明显锯齿,略有波状起伏;主脉凹下,侧脉9~10对,网脉明显。叶柄长9~11mm。

  •Small tree to 4-8 m; crown spheroidal or ovoid; branches sparse, the angle large between trunk and the branches; bark fairy smooth, lenticels rhombic,dense, slightly raised; the medium vigorous. Leaves narrow, oblong or elliptic-lanceolate,9- 12 cm×3-3.5 cm, leathery, flattened, dark green, lustrous, base cuneate, apex acuminate and acumen reflexed sometimes; margin entire or serrate unobvious,lightly undulate, primary veins engraved obviously, secondary veins 9- 10 pairs, reticulate veins obvious; petioles 9- 11 mm long.

 

 

花

Flower


  •花枝较短,长8~10cm。每节叠生花芽2对,每花序有花7~9朵。花朵繁密,有浓香。花梗长8~12mm, 中下部带紫红色。花黄白色至乳黄色(RHS-CC 4B)。花冠斜展,或近于平展,直径8~9mm; 裂片倒卵圆形或椭圆形,长约3.5mm, 宽2 . 5~3mm, 肥厚;雌蕊完全败育,不结实。花期9月上中旬至9月下旬。

  •Flower twigs short, 8- 10 mm long, flower buds 2 pairs per node, each with 7-9 flowers, blossom dense, strong scented; pedicels 8- 12 mm long,purpled red at the lower part; corolla broad campanulate, inclined or near to spreading, cream white to cream yellow (RHS-CC 4B),8-9 mm diameter; corolla lobes obovate or elliptic,3.5 mm×2.5-3 mm,stout; stamens 2; pistils abortive, sterile. Blooming in early to late September.


 

 

分布

Distribution


  •产江苏苏州(光福)、苏州桂花公园、南京;安徽合肥;浙江杭州等地有栽培。是苏州光福地区的传统地方品种,但目前数量已经不多。

  •Nanjing 、Suzhou, Jiangsu; Hangzhou, Zhejiang; Hefei,Anhui.

 

备注

Remark


  •叶较狭长,长宽比一般在3以上,近全缘,花朵较大,直径达8~9 mm, 花色较深。

  •Leaves narrow and long,nearly entire; flower big, 8-9 mm diameter, deep in color.