What's the local name of Shengzhou, Zhejiang, plum duck flower book?

Does the subject want to ask "what is the local name of Shengzhou, Zhejiang Province, and what is its scientific name?" The herb name of ebony with flat bamboo root is bamboo root, which belongs to iris, and it is also called iris in some places. In Shengzhou, Zhejiang Province, people call it duckweed flower, perhaps because its roots are flat, like the soles of ducks' feet, or because ducks come out for food in spring and enjoy it with the Kobanawa ducks on the hillside.