Among artificially grown edible mushrooms, straw mushrooms are the freshest for soup.

Grass mushrooms, also known as orchid mushrooms, bush foot mushrooms originated in Shaoguan, Guangdong Province, Nanhua Temple, 300 years ago, China has begun artificial cultivation, in the twentieth century, about 30 years by the overseas Chinese into the countries of the world, is an important tropical subtropical mushrooms, is the world's third largest cultivation of edible fungi, China's grass mushrooms production in the world's first, mainly distributed in southern China. Straw Mushroom is rich in nutrition and delicious in flavor. Each 100g fresh mushroom contains 207.7mg vitamin C, 2.6g sugar, 2.68g crude protein, 2.24g fat, 0.91g ash. Protein of straw mushroom contains 18 kinds of amino acids, of which essential amino acids account for 40.47-44.47%. In addition, it also contains a variety of mineral elements such as phosphorus, potassium and calcium.

The straw mushroom is named because it often grows in moist and decaying rice straw, and is mostly produced in Guangdong, Fujian, Jiangxi and Taiwan. It is fat, thick, short, smooth, and has a very beautiful flavor, so it is called "orchid mushroom" and "delicious foot mushroom".