The devil's needle grass grows on the roadside and on the barren slopes.
A pedestrian accidentally got stuck on it. He couldn't stand it for a long time and was very annoyed. So I called it ghost hair grass , sticky grass .
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After sleeping enough, it slowly sprouted and grew rapidly. The stem is upright, not very tall or thick, and the stem has four edges and is bright and shiny.
The leaves at the lower part of the stem are small, appear in three or undivided, and fall after flowering.
The middle leaf has three long stems and three leaflets, and occasionally five or even seven leaves. The leaflets on both sides are rounded, with a pointed head and a wedged tail, which are biased towards autumn (not straight) and asymmetrical. The leaf handles are short and the leaf margins are like serrations.
The terminal leaves are larger, long and round, with a tapered head, tapering tail, and serrated long handles.
The upper leaves are small, scattered like strips and needles.
二
flower head , peduncle long. The base of the involucre is hairy, the bracts are like strips and spoons, the upper part is slightly wider, and they grow continuously from flowering to fruiting. The outer bracts are scattered like needles and dry, and the inner layer is narrow, like strips and scattered like needles. There are no tongue-shaped flowers, the flowers are in the shape of a tube, and the crown and eaves are five-lobed.
Achenes are black, thin strips, slightly flat and ribbed, with three or four thorns on the upper end, as well as underturned burrs, like crab claws and shrimp claws. They hook people and animals as if they are stuck, so people call it crab. Clamp grass, shrimp clamp grass or versus fork grass .
It borrows the wind and water to spread its seeds, dormant over the winter, then germinates, and then runs wild.
三
Psoralea is a commonly used herbal medicine among the people. If you have an upset stomach, boiling water and drinking it is very useful.
However, we regard it as a bad weed and want to get rid of it quickly. It grows indiscriminately for no apparent reason, sticks to itself for no apparent reason, and breeds pests for no apparent reason. Do you want it to cause harm to people?
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