ChrysanthemumCallistephus chinensis(Nees) is an annual or biennial herb in the genus Callistephus of the Asteraceae family. The stems are upright, solitary, with longitudinal ridges, and covered in white rough hairs; the middle leaves are ovate, rhomboid-ovate, spatulate, or nearly circular; the petioles are long, covered in white short stiff hairs, with narrow wings; capitula are solitary at the top of the stem branches; corollas are yellow; achenes are long, elliptic, and obliquely falcate; flowering and fruiting period is from May to October. 

Chrysanthemums are native to Northeast and North China, as well as various regions in Sichuan and Yunnan. They require ample sunlight; prefer cool climates but are not frost-resistant and fear high temperatures; and like moderately fertile, moist, and loose soil. Chrysanthemums are propagated through sowing. 

The chrysanthemum flower is bitter in taste, with a neutral nature, and is used to clear the liver and improve eyesight, treating eye redness, swelling, and pain, as well as blurred vision. Chrysanthemums, available in red, light red, blue, yellow, or pale lavender-blue hues, offer high ornamental value and are commonly planted in botanical gardens, parks, courtyards, and other public spaces.