柳: The weeping willow, a tree of poetic grace, symbolizes the serendipitous arrival of spring, its verdant leaves and budding branches heralding a precious and auspicious fortune.

榆: The elm tree, with its evergreen foliage, stands tall and straight, embodying the spirit of unwavering resolve and robust vitality. Its seeds and flour are cherished in Chinese culture, symbolizing strength and prosperity.