“书香门第”中的“书香”之典出于芸草之香。芸草也叫香草、芸香草,为多年生草本植物,丛生,秆细,花金黄色,叶为倒卵形、圆形或匙形,表面带白霜,其下部为木质,故又称芸香树。公元前138年张骞出使西域时引入我国,现在芸草大多产于川、甘、陕、贵、滇等地。它不仅具有特殊的香味,而且还是一种可用的药材,有驱虫、驱风通经的作用,嚼之有辛辣和麻凉的感觉。 “Scholarly door ” in “scholar ” Code out of the brocade fragrance. Brassica oleracea, also known as vanilla, Rutaceae, herbaceous perennial, tufted, stalk fine, flowers golden yellow, leaves obovate, round or spoon-shaped, with a hoarfrost on the surface, the lower part of the wood, it is also known as rue. When Qian Qian came to China in the Western Regions in 138 BC, most of the Brassica was produced in Sichuan, Gansu, Shaanxi, Guizhou and Yunnan. It not only has a special scent, but also a kind of medicinal herbs that can be used. It has the function of deworming and driving through the wind, and the feeling of spicy and numbness of chewing.