A painting of a yellow flower with a butterfly on it

Acacia tree，Also called"black locust"，The flowers are butterfly corollas，It is clustered when blooming，Climbing into spikes，Overlapping overhangs，The florets are often wrinkled and curled，The petals are scattered，The whole one is calyx bell-shaped，Five petals，Delicate and delicate，The flowers appear pale yellow or white，The petals are soft and delicate，It's like a thin veil，Gently float in the air，Calyx bell-shaped，Five petals，Delicate and delicate，The smell is fragrant