Without pictures and detailed shape descriptions, it is difficult to know what it is. Common in wheat fields are shepherd's purse and watercress. Shepherd's purse generally knows whether it is watercress or not.

The picture on the back is illegible, like lychee grass, also known as Xueliqing. Image link: /i? tn = baiduimage & ampct=20 1326592。 lm=- 1。 cl = 2 & ampfr = ala 1 & amp； word=%C0%F3%D6%A6%B2%DD