Fairy grass, also known as fairy grass and bean jelly grass, is an annual herb perennial plant, which can benefit for many years if planted for one year, and the height can reach 100 cm; Stems are initially puberulent and setose, slightly old and clean. Leaves opposite, with petioles 2 ~15 mm long; Leaf blade broadly ovoid to narrowly ovoid, sometimes suborbicular, 2 ~ 5.5 cm long or over, both surfaces pilose or only on the lower veins, sometimes subglabrous.

There are more than 20 species of Curculigo plants in the world, which are mainly distributed in tropical and subtropical regions of Asia, Africa, South America and Oceania. It was first published in Materia Medica of Haiyao. Its leaves are like grass, and its rhizome can replenish essence and marrow for a long time, which makes it more energetic. Therefore, it has the name of Curculigo, which is also called Dibrown (Sichuan and Guizhou), Dumao (Sichuan), Dangshen (Fujian), Curculigo ginseng (Yunnan) and Hainan ginseng (Hainan). Rhizoma Curculiginis, a plant of Amaryllidaceae, is a traditional Chinese medicine recorded in the first part of Chinese Pharmacopoeia (2005 edition). It has the functions of tonifying kidney and yang, nourishing essence and blood, strengthening bones and muscles, promoting blood circulation and reducing swelling, and is mainly used for diseases such as kidney yang deficiency, impotence, nocturnal emission, asthenic tuberculosis, internal injuries and pain in bones and muscles.