Kidney fern, scientific name: Nephrolepis auriculata (L.) Trimen, alias: round goat's tooth, grate grass, phoenix egg, centipede grass, stone yellow skin, kidney fern family kidney fern genus. Kidney fern prefers warm and humid environment, semi-shade, avoiding strong direct light, not strict on soil requirements, loose, fertile, breathable, humus-rich neutral or slightly acidic sandy loam soil grows best, not hardy, more drought-resistant, barren. Kidney fern is a widely used ornamental fern in China and abroad. In addition to gardening applications, kidney fern is also a traditional Chinese medicine. It is used for clearing away heat and dampness, nourishing the lung and relieving cough, and softening and eliminating stagnation. It is often used in cold and fever, cough, tuberculosis hemoptysis, dysentery, acute enteritis.