雙翼豆 yellow flame tree (peltophorum pterocarpum)

影樹(鳳凰木)花期結束 《維園火焰 》,到雙翼豆吐艷。將兩者相提,因她們同目同科(豆),傘形樹冠,二回偶數羽狀複葉都相似。且兩者英文俗名均取材火焰,一紅一黃。

yellow flame trees just started blossoming. i have spotted quite many of them these few days on hong kong island. at victoria park, in central. if you see some handsome-built trees around the city, rich in bipinnate leaves and attractive yellow flowers in large compound racemes, they are the one.

yellow flame blooms 2014

在不開花時要分辨兩者,參考維基:看葉,盾柱木的小葉片較鳳凰木寬大、數量較少,且沒有羽葉般的托葉著生於葉柄基部;盾柱木的嫩枝披銹色毛,而鳳凰木則枝條光滑。

返回今天的主角雙翼豆,過去幾天,走在香港島街頭,不時發覺她們的影蹤。樹冠茂綠的羽狀複葉,樹頂像插上金黃頭釵的就是她們。

雙翼豆,名來有因,指其莢果邊緣具翅。另名盾柱木,則指其盾狀花蕊,正式來說是其綠色雌蕊柱頭。

最後一提,雙翼豆似乎是上一代的植樹品種,意思是當今在香港新種植的樹木,少了選擇此品種。所以大家現在在城內看到的雙翼豆都很壯大,因為她們都有一把年紀了。

yellow flame trees and the flame of forest look alike. the latter just finished their fire-hot flowering season 《 red hot victoria park》 . they belong to the same order and family, thus the similarities in the apprearances. both have feathery leaflets. yellow flame tree’s leaflets are however relatively bigger and with smaller number in each leaf.

it has another common name – yellow poinciana. poinciana refers to fruit with wings. yellow flame trees produce copper-coloured pods and ripen in black. the pods are a bit flat in the middle with the edges look like wings.

one note, yellow flame tree was popular as a cultivated species but not any more. therefore, most of the trees we now appreciate their glory blooms are tall and big, meaning they are an aging species in this city.

yellow flame victoria park 2014@victoria park 維園

雙翼豆 yellow flame tree (peltophorum pterocarpum)又名盾柱木 also named yellow poinciana - kingdom: plantae 植物界 | (unranked 未分級: angiosperms 被子植物 | (unranked 未分級): eudicots 真雙子葉植物 | (unranked 未分級): rosids 薔薇類植物 | order: fabales 豆目 | family: fabaceae 豆科 | genus: peltophorum 盾柱木屬 | species: p. pterocarpum 盾柱木  wiki

植物各部分圖片參考 different parts of the plant ref 

 

 

 

 

 

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