合欢虽然并不名贵，但古人对它却充满了感情，诗人们常将它作为男女合好、欢乐无忧的象征加以咏唱。如“春色不知人独自，庭前开遍合欢花”、“合欢尚知时，鸳鸯不独宿”等。为什么会出现这种情况呢？合欢是一种落叶乔木，羽状复叶，小叶对生，其叶晨舒而暮合，因此在它的不同 Although Acacia is not very expensive, the ancients were full of affection for it, and poets often sing it as a symbol of harmony between men and women. Such as “I do not know the spring alone, before the opening of the Acacia flowers”, “Acacia is still known, you do not stay alone” and so on. Why does this happen? Albizia julibrissin is a deciduous tree, pinnately compound leaves, leaflets opposite, and its leaves are bred and fused, so it is different.