Solanum nigrum: Berries and leaves can be eaten. Berries can be eaten directly after turning purple. They are sour and sweet, but the leaves contain a lot of alkaloids and must be cooked.

Datura stramonium: wild all white flowers, tubular. Capsule erect, with hard needles. Often born in wasteland, dry land, beside houses, sunny slopes, forest edges and grasslands. I like warm, sunny and well-drained sandy loam. Has medicinal or ornamental value.

Qǐng hemp: It is especially common in the field. When the seed explodes, a pile of seeds. Mature stem bark is the raw material for making ropes and packaging supplies.

Xanthium sibiricum: There are many hard thorns. When I was a child, boys used to stick them on girls' hair, and I almost cried. Maybe you don't know, it also has its toxicity (kaurene glycoside) in the whole plant, especially in fruits, especially in seeds.

Hua: It looks particularly like morning glory, but the leaves are different. It is willow-shaped, and the morning glory is palm-shaped, which is as attractive as the morning glory.

Motherwort: It is common in the wild, but unexpectedly it is a famous holy medicine for gynecological diseases. Summer flowers are bitter and cool when they are not fully open, which can promote blood circulation, remove blood stasis, regulate menstruation and promote diuresis. It can be used for the treatment of irregular menstruation, fetal leakage, dystocia, retained placenta, postpartum blood halo, abdominal pain due to blood stasis, metrorrhagia, hematuria, diarrhea and carbuncle.