Bletilla striata (scientific name: Bletilla striata) is also known as Lianhecao, Gangen, Baigei, Luolan, Zhu Lan (Flower Mirror), Zilan, Zihui and Baili. It is a perennial herbaceous bulbous plant (root tuber), mainly distributed in China, Taiwan Province, Japan and northern Myanmar. Huamei is suitable for viewing, and the name of its bulb after drying is Bletilla striata (also known as Bletilla striata, Bletilla striata, Eupatorium adenophorum, Radix Glycyrrhizae, and Baigei), which belongs to Chinese herbal medicine, and others are also used as paste. The general variety is purplish red in color, so it is not called purple orchid; Another variety has white flowers, called Bletilla striata (B. s. var. alba). There are also yellow, pink, red and blue horticultural varieties. The main flowering period is in spring, but it may bloom from late winter to early summer depending on the climate in different places. If planted, half-day irradiation should be adopted in summer because the tip of the leaf is easy to scorch.