What is the February flower in Du Mu's Frost Leaves Red in February Flowers? What flower is redder than the frost leaves in February?

This poem by Du Mu is called Walking in the Mountains, and "Frost leaves are redder than February flowers" means "Maple leaves are redder than February flowers". At this time, the maple leaves turn red due to frost, and it is evening, and the sunset glow makes the maple leaves redder. The flowers in February don't refer to a certain kind of flowers, but to the flowers in spring! Most of the 24 solar terms and beginning of spring are in February, which is the Spring Festival! It means that spring is coming! Spring has come, the grass is green and the flowers are in bloom ~ ~ ~