隨著四季變化更換風貌，春天約三月開花，花季時花多葉少；夏天長葉結果莢，翅果紛飛；秋天枝葉繁盛，綠意盎然；冬天枯枝落葉，有滄桑之美。黃花風鈴木為巴西國花，色鮮黃，漏斗形，像風鈴，花緣皺曲，兩側對稱。果為長條狀翅果，種子具翅。

Following seasonal changes, the Yellow Poui notably transforms its appearance.  Flowering is around March in early spring.  During this period flowers greatly outnumber the leaves.  In summer, a long dehiscent pod is borne, releasing numerous winged seeds.  Branches and leaves grow vigorously as autumn arrives, covering everything in a comfortable green.  As leaves fall off in winter, the plant carries a melancholic beauty.  The Yellow Poui is the national flower of Brazil.  Bright yellow funnel-like flowers are like wind chimes; edges creased, symmetrical in form.