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資料編號: | HK-2015 |
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中文名稱: | 阿江欖仁 |
學名: | Terminalia arjuna [找同屬植物] |
異名: | Pentaptera arjuna |
英文名稱: | Arjune Terminalia |
植物科名: (APG新系統) | COMBRETACEAE使君子科 [找同科植物] |
標室舊系統 | COMBRETACEAE使君子科[找同科] |
生長習性: | 高大喬木 |
原生/外來: | 外來植物 |
發現開花: | July |
特別特徵: | 葉基有腺體_有特色樹皮 |
圖片果色: | brown |
資料更新: | 20220730 11:05:56 pm |
備註: 果圖: 2018.4.29 花圖: 2022.7.17 這樹在沙田及荃灣一帶已見落戶。它樹幹有軍人迷彩, 葉基也有腺體。兩種特徵很易辨認 (Thanks Igu Ana Lee's info) 果5 wings 仲有隻咁嘢,不過樹皮就深裂。(Crawford's info) 大喬木,高15-20m;枝近平展,後下垂,葉痕明顯。葉長橢圓形或長卵形,長9-22cm,寬5-10cm,頂端鈍、圓形,基部圓形或微凹,主脈粗,在葉背面凸起,葉面深綠色,背面淡綠色,乾後成黃褐色;側脈15-22對;葉柄短,頂端具1-2腺體。花排成頂生的穗狀花序狀的聚傘花序;花萼筒杯狀;雄蕊10枚。果倒卵形,直徑2-2.6cm,具5棱。花期3-5月;果期7-9月。information from 澳門生物資料庫 Reference 2 FoHK Large tree, 15–20 m tall; bark greyish white, exfoliating in flakes; branches alternate, spreading. Leaves subopposite; petioles shorter than 1.2 cm, with 1 pair of glands near apex; leaf blade thickly papery, oblong or elliptic, 10 – 15(–25) × 5 – 10 cm, base cordate, asymmetrical, apex obtuse or very shortly acute, margin slightly undulate to subentire, densely papillate adaxially, subglabrous abaxially, lateral veins 15 – 22 pairs, conspicuous on both surfaces. Bracteoles very small. Calyx-teeth nearly glabrous on both surfaces. Ovary short, densely covered with crisped brown or rusty hairs. Fruit obovoid, 2– 2.6 cm in diam., ridged, wings usually truncate or suddenly narrowed at top. Locality: Cultivated in gardens. Terminalia arjuna=Pentaptera arjuna (SZ 植物誌) Crawford info: 阿江欖仁葉序同果唔多似在香港會見到的其他欖仁樹屬樹木。 阿江欖仁核果矩圓形呈5翅狀非常獨特,成熟後每一塊翅還會彎曲。樹皮淡黃色至黃褐色,表面稍平滑,呈薄片狀剝落。 在原產地一帶還有種跟其極相似的同屬樹木Terminalia elliptica,雖然果葉花都似,不過樹皮的顏色跟紋理就差好遠。 | |
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