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一、形态特征金帆紫荆系紫荆的芽变。落叶灌木或小乔木,高3m~10m,树干直立丛生。枝条直立性强,自然开张,幼时多在枝条两侧均匀分布,形如张开的金色大帆;老枝褐色,嫩枝黄褐色,无毛;叶片较大,近圆形,长8cm~15cm,先端急尖,基部心形,无毛,叶色春季金黄色,夏秋老叶返绿,幼叶黄色渐变为鲜黄色,具叶柄,叶柄长4cm~5cm,幼叶柄栗色,新叶柄姜黄色,老叶柄黄绿色;叶背黄色,无毛;早春季节先花后叶,花5片~8片,簇生,花梗长0.6cm~1.5cm,萼红色,花冠紫红色,花形似蝶,花期3月,~4月,盛开时花朵繁多,成团
First, morphological characteristics Golden Bauhinia Bauhinia buds change. Deciduous shrubs or small trees, 3m ~ 10m high, tree trunks erect. Branches of strong erect, naturally opened, more evenly distributed on both sides of the twig when young, shaped like an open golden sails; old branches brown, shoots brown, glabrous; leaves larger, nearly circular, long 8cm ~ 15cm, apex acute, base of heart-shaped, glabrous, leaf spring golden yellow, summer and autumn leaves back to green, yellow leaves yellow gradient fresh yellow, with petiole, petiole 4cm ~ 5cm, young petiole chestnut, petiole ginger , Old petioles yellow-green; leaves yellow, glabrous; early spring after the first flower, 5-8 flowers, tufted, pedicel 0.6cm ~ 1.5cm, calyx red, corolla purple, flower-shaped butterfly, flowering 3 Months, ~ April, blooming flowers, into a group