白及屬多年生宿根性草本，分布中國、琉球與臺灣，從平地到海拔3000m的高山均有。株高20~60cm。地下有圓錐形假球莖。披針狀線形葉有縱摺。總狀花序頂生，能開花3~8朵，每次只開1~2朵。白至粉紅色花瓣6枚，脣瓣黃色有縱脊狀褶片，花徑2~3cm。開花期春末至夏季。

A perennial herb in the genus Bletilla, distributed in China, Ryukyu and Taiwan, from lowland to high-altitude mountains of 3000 m. Plant height 20-60 cm. With conical underground pseudobulbs. Leaves lanceolate linear with vertical puckers. Raceme terminal with 3-8 flowers, but only 1-2 flowers open at a time. Petals 6, white to pink, lips yellow with longitudinal ribbed puckers, flower diameter 2-3 cm. Flowering from late spring to summer.

全日照溫暖至冷涼環境，喜潮濕介質，栽培以富含有機質的黏土或壤土為宜，長期乾燥會造成落葉，介質乾就澆水，冬季休眠期可節水。春至秋每季施用一次長效性肥料。繁殖使用分株法。

The plant grows in a full-sun, warm to cold environment, and thrives in wet soils preferably clay or loam rich in organic matter. Prolonged drought will cause defoliation. Water when the medium appears dry but cut water use during winter dormancy. Apply long-active fertilizers once a season from spring to autumn. Propagated from ramets.

花朵美麗，可用於生態復育與道路邊坡綠美化使用。假球莖富含多種聚糖，具有抑菌止血與增進肺部功能，是傳統中藥，現代亦開發為成藥使用。

Highly valued for the beautiful flowers, it’s commonly used in the projects of ecological restoration and road beautification. The pseudobulbs are rich in various glycan with antibacterial and hemostatic properties which can improve lung function. It is a traditional Chinese medicine and has also been developed for use as an OTC medicine.