木油桐花 wood-oil tree flowers

仲春開始,在臺灣媒體不時看到各地四、五月間的賞桐花和桐花祭的活動。還經常看到「桐花雪」這夢幻般的花賞詞。感覺油桐花對臺灣人來說就像櫻花于日本人的層次。

在香港,沒有很感覺到桐花的存在。猛不然,上星期經過九龍公園,意外地感受到一場小「桐花雪」的美麗。在九龍公園進文物探知館的小徑開端,就是木油樹的所在。

taiwanese worship tung oil flowers. i gather this feeling as i read so many media reports on and activities around the tung flower festival happen every april and may. but i haven’t felt the present of this tree in hong kong, until last weekend i pumped into what the taiwanese called the “tung oil flower snow” in kowloon park. it is dreamy even though it was one tree only, around the corner of the hong kong heritage discovery centre. i cannot imagine what a spectacle that will be being in a hill-ful of tung oil trees.

一地落英,細看還分得出兩色,即雌雄花。雄花蕊红,雌花蕊黄。木油是中國原生的,所以英文的俗名也就是tung tree 或 tung oil tree。

據《樹木谷》說,在香港觀賞木油的地點有九龍公園、大埔公路近海福公園、動植物公園、嘉道理農場山頂、沙田公園。

tung oil tree is native to southern china, thus the common name is english is so chinese. its flowering season is around april and may. each flower is unisex. but each tree bores both male and female flowers. male flowers have stamens in red with yellow pollen.

千年桐 / 木油桐 wood-oil tree (vernicia montana) – 植物界 plantae kingdom | 被子植物門 magnoliophyta division | 雙子葉植物綱 magnoliopsida class | 金虎尾目 malpighiales order | 大戟科 euphorbiaceae family | 油桐屬 vernicia genus | 木油桐種 v. montana species

參考 reference:

  • 油桐花,圓錐花序頂生,花形書筒狀,綠色,花冠白色,基部略帶紅色,花五瓣呈五角星形,雌雄同株異花,雄花具八至十支雄蕊,雄蕊為紅色,花粉為黃色,故油桐花色,白花之中仍透著淡紅與粉黃色。(摘自94/5台灣月刊 作者:陳憲惠)
  • 木油和油桐近似,一種是果實先端突尖,果皮光滑的 “三年桐Aleurites fordii(油桐)”,植後三年可結果,只有二十年壽命。另一種是卵形核果,果皮三縱稜,具多數皺紋的”千年桐(木油樹)Aleurites montana”,植株壽命長。两者的樹形、枝葉及花朵構造等都非常類似,只是果實有很大的分別。(資料來源:《樹木谷》)
  • 植物面面觀》 –   *油桐樹屬於經濟樹:其種子可榨取可作工業用油。果實榨出的油還可以做成油漆和防水油,如美濃紙傘的傘面,就是用桐油上光;木材可製傢俱、火柴棒、木屐和牙籤等。  *油桐的葉互生具長柄,單葉,心形或具三或五裂片,脈網顯著。葉基有一對杯狀腺體,具吸引螞蟻、蜜蜂、蝴蝶等昆蟲的功能。*花是單性的,雌雄同株異花,花瓣白色,五瓣,雄花具雄蕊 8-10,中心為紅黃色,花成一大簇。聚繖花序頂生,春季3-5月開花。由於花身輕盈曼妙,風一吹來,滿山遍野的白色油桐花翩翩飛舞,如大片飛雪飄落,故油桐花又有「五月雪」的美稱。
  • 桐油網
  • purdue university
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