What do you mean by swallowing grass?

Yan c m 4 o baiqian

1. Lingling's alias. Li Mingshizhen's Compendium of Materia Medica III. Smoked Grass Linglingxiang [Collection] quoted Ma Zhi as saying: "Linglingxiang was born in Lingling Valley, with leaves like basil." The Annals of South Vietnam says: The name of the natives is Swallow Grass, also called Cao Xun, which is vanilla. This is the case with Shan Hai Jing. "

2. Generally refers to the grass in the north. Tang Li Bai's poem "Spring Thoughts": "The grass in the north is as blue as jade, and the mulberry leaves are covered with green silk branches." Hu's poem "Returning to Dream" says: "The sun rises first, Mount Tai begins to dawn, and the swallow grass declines."