Coreopsis (scientific name: Coreopsis spp.) is a perennial herbaceous plant belonging to the genus Coreopsis in the Asteraceae family. Native to North America, it is also widely distributed in China, often found in courtyards, parks, and some field observation sites. Characteristics include upright stems, sparse pubescence, opposite or whorled leaves, corymbose or sparsely paniculate flowerheads, and yellow ligulate flowers with red tubular flowers. This plant is highly robust and fertile, making it suitable as an ornamental plant.

The flowers of Coreopsis tinctoria Nutt., also known as "Two-color Coreopsis," can not only be used to make tea but also to dye in hot water. These vibrant flowers are commonly used for garden decoration and bedding plantings. Coreopsis thrives in warm environments, is drought-resistant, and grows well in fertile soil. They can be propagated by seeds, division, or cuttings.

Astrantia not only serves as a beautiful ornamental plant but also holds certain economic value and potential. Due to these characteristics, Astrantia has become a favorite among gardening enthusiasts and professional agricultural workers.