台灣相思 formosa acacia

春末,台灣相思開花。走在香港多樹的地方,遇到一片黃霧就找著她們。從名字想當然,台灣人於我的感覺是濃膩的,跟台灣相思的花很配。花季,一樹爆發黃茸。

formosa acacia 2013

formosa acacia blossoms late spring. every time of the year, anywhere you spot a mist of yellow among the green in the city, it is bound to be them. the flowers are adorable, in yellow fluffy spheres.

介紹此樹,一定要提到她的葉。按植物學論,成長的台灣相思上,大家看著彎彎如小鐮刀的,其實是由葉柄變態而成的。真葉只存活到樹的幼苗時代,呈二回羽狀。

one piece of botanic knowledge of formosa acacia is that the sickle-like “leaves” of the adult plants are actually phyllodes. true leaves are bipinnate leaves and survive only to the age of juvenile.

formosa acacia c 2013

上世紀香港種植很多台灣相思,作植林用途,因為能耐旱,生長快速。她與紅膠木、愛氏松有「植林三寶」的稱號。不過,樹的壽命只有數十年。加上現代的植樹政策偏向採用本地原生植物,我們的下一代可能不會那麼熟悉這樹了。

formosa acacia was a commonly used afforestation species in hong kong in the last century. the advantage is that they can endure drought and grow rapidly. these taiwan and philippines native however have lifespan of only a few decades. with more focus on native plants in today’s afforestation policy, our kids may get less and less familiar with this species.

formosa acacia b 2013

台灣相思 formosa acacia (acacia confuse) – 植物界 plantae kingdom | 被子植物門 magnoliophyta division | 雙子葉植物綱 magnoliopsida class | 豆目 fabales order | 豆科 fabaceae family | 亞科: 含羞草亞科 mimosoideae sub-family | 金合歡屬 acacia genus | 種 species: 相思樹 a. confusa

參考 reference: 《惜樹靈人》; flowers of india

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