1, the wild onion is on the mountain in Beijing.

2. The stem of wild onion is thin, round and solid, with a diameter of about 2-3mm, which is delicious and grows on the hillside. What grows in the sand is called Allium mongolicum Regel. What grows in Shui Ze is called onion. Wild onion has three kinds of flowers: white flower, yellow flower and purple flower. The fruit is as big as onion, among which purple onion tastes the best and is an excellent vegetarian condiment.