Cupressus funebris Endl. is a tall tree belonging to the genus Cupressus in the family Cupressaceae; The bark is light brownish gray; The small branches are slender and drooping, green in color; Older branches cylindrical, dark brownish purple; Male bulbous flowers are elliptical or oval in shape, while female bulbous flowers are nearly spherical; The cone is round in shape and dark brown when ripe; The seeds are wide inverted egg shaped, diamond shaped or nearly circular, flat, light brown when ripe, shiny, with narrow wings on the edges; The flowering period is from March to May, and the seeds mature from May to June of the second year. Cypress and pine are often referred to as the longest among all trees. Wang Anshi's "Zishuo" explains Bai Yun: "Bai is still like Bo, so the character is Bai." Therefore, it is called Baimu.