黃金雨 golden shower

前些時,遇過白與嫣紅雨(節果決明)。近兩三個月,則是金急雨的時分。

香港稱此樹為豬腸豆,以其果命名,很沒詩意。台灣多叫阿勃勒,有點民族風味,比較入耳。別名還有波斯皂莢、婆羅門皂莢、長果子樹等。

金黃色花有五個花瓣,總狀花序腋生,成串下垂,惹人聯想到日本和服女生簪在頭上玲瓏的頭飾。

flame of the forest sets summer alight, golden shower then sprinkles yellow to the mix. golden shower is the best name of a plant i came across so far. what better description to match these breezy, dancing blossoms.

 

此樹與黃槐和決明份屬親戚 – 豆科決明屬,看她們的黃花可猜一二。原產於南亞南部,是泰國的國花,當地稱為 “dok khuen”,其黃色的花瓣象徵泰國皇室。

 @堅道 caine road

it is native to east asia. in thailand it is called “dok khuen” and is the national flower. the yellow represents the thai royalty.

 @hku west gate 香港大學西閘

豬腸豆 golden shower (cassia fistula) – 植物界 plantae kingdom | 被子植物門 magnoliophyta division| 雙子葉植物綱 magnoliopsida class | 薔薇亞綱 rosidae subclass | 豆目 fabales order | 豆科 fabaceae family | 蘇木亞科 cæsalpinioideae sub-family | 決明屬 cassia genus| 種:c. fistula species

references:

  • 黃金雨是一種中型樹,樹身可長至10至20米高,而且生長迅速。黃金雨是一種落葉樹或半常綠樹。
  • 葉長15到60厘米,偶數羽狀複葉,每片樹葉有4到8對小葉片,每片長約7到21厘米、闊約4到9厘米,小葉對生,葉面平滑,全緣。
  • 花長在約20到40厘米長的下垂狀腋生總狀花序。花的直徑約4到7厘米,花瓣5枚離生,大小略等,雄蕊10枚,花絲黃色彎成勾狀,其中有3枚特長、4枚中等而另3枚較短為不孕性。
  • 花落後結出長棍棒狀不開裂莢果,長約30到60厘米,1.5到2.5厘米闊,需時一年才成熟,顏色由綠轉黑褐,每室有一種子,呈扁圓形有褐色光澤,果肉是瀝青狀黑色黏質,有一股刺鼻的氣味。
  • 種子有說味甜可食用,亦有說有毒,有輕瀉作用,古埃及人用此來作瀉藥用。
  • 樹皮含單寧,可作紅色染料。《維基
  • 阿勃勒的葉子,是銀紋淡黃蝶和水青粉蝶等一些粉蝶幼蟲的食物。《博嘉國小校園生態網
  • canafistula is a fast-growing, medium-sized, deciduous tree which grows to about 9 meters in height. leaves are compound, with 4-8 pairs of opposite leaflets. it produces flowers which are golden yellow and hang in showering bunches of up to 40 cm long earning its common name of “golden shower tree.” the flowers appear when the branches are bare, just before the new leaves emerge and are a favorite of bees and butterflies. the blooms are followed by the production of two-foot-long, dark brown, cylindrical, woody seed pods which persist on the tree throughout the winter before falling to litter the ground. canafistula is native to india, the amazon and sri lanka, and is now widely cultivated worldwide as an ornamental tree for its beautiful showy yellow flowers. (source: rainforest database)
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