Bletilla striata (scientific name: Bletilla striata) is also known as Lotus Grass, Gangen, Baigei, Roland, Zhu Lan (goggles), Eupatorium adenophorum, Zihui and Bletilla striata. It is a perennial herbaceous bulbous plant (root tuber), mainly distributed in China, Taiwan Province Province, Japan and northern Myanmar. Prunus mume is suitable for viewing. The dried bulb is called Bletilla striata (also known as Bletilla striata, Eupatorium adenophorum, Glycyrrhiza uralensis and Bletilla striata), which belongs to Chinese herbal medicine, and others are also used as ointment. The general variety is purple-red, so it is not called purple orchid; Another variety has white flowers called Bletilla striata. Alba). There are also yellow, pink, red and blue horticultural varieties. The main flowering period is in spring, but it may also bloom in late winter to early summer depending on the climate in different places. If planted, it should be irradiated for half a day in summer, because the tip of the leaf is easy to burn.