Sagittaria sagittata, also known as Scissors Grass, Swallowtail Grass and Vegetable Eggs, belongs to Alismataceae and is a perennial herb. Sweet but bitter and arrowhead, commonly known as vegetable eggs. China's origin, distribution: Northeast China, North China, Northwest China, East China, South China, Southwest China and other places, with wild distribution in Shanghai. It is cultivated all over East China, and the underground bulbs are edible. The main varieties of arrowhead are Guangdong white-fleshed arrowhead and sand mushroom. Zhejiang Haiyan Shendang arrowhead. Jiangsu Baoying scraped Laowu and Suzhou Yellow. Sagittarius sagittarius in Wuzhou, Guangxi.

Braised pork with arrowhead is an indispensable dish on the table during the Spring Festival in Guangdong. In Cantonese, the boy is called arrowhead (most used when asking if someone gave birth to a boy or a girl).