What does dolphin grass mean? What kind of grass is ragweed?

What does the Qing Dynasty mean to dolphin Qingdao is the green meadow of the Qing Dynasty.

Dolphin grass, as the name suggests, is a noxious grass that has a particularly strong ability to compete with other plants for water, fertilizer, and sunlight. Ragweed consumes more than twice as much water and fertilizer as field crops and cereal plants, so it can severely reduce the yield of many cash crops and food crops, or even fail to harvest.

Ragweed pollen can induce hay fever and bronchial asthma, which is a serious danger to human health. According to relevant foreign information, if there are 30 50 ragweed pollen in one cubic meter of air, hay fever can be induced. Ragweed pollen has caused 10 million people in the United States, Russia, Britain and Japan to suffer from hay fever and allergic asthma, which are serious and almost life-threatening.

According to relevant domestic survey reports, more than 60 percent of asthma patients in Nanjing are caused by ragweed pollen.

Also called violet erectus, this is a perennial herb of the genus Streptocarpus in the family Streptocarpus, the scientific name is Streptocarpus saxorum (this is the Latin name).

Theoretically speaking, the dolphin is a symbol of love, and the average girl who sends the dolphin means that the woman likes the man very much and has him in her heart.

Of course, this is only a theoretical symbol, and whether it is practical or not depends on the feelings of the person concerned.

Mammal. Live in the ocean. The body is about two meters long and spindle-shaped. The nostrils are long on the top of the head, the back is bluish-black, with dorsal fins, the abdomen is white, and the forelimbs become fins.

Is dolphin grass the name of grass? If so, you can go to the physical store to see if there is any fish for sale, and it is recommended that you check it.

In fact, it's a more powerful dolphin and the like, only one with what?

Dolphin grass is generally short ragweed, and it is also known as mugwort in rural areas. It belongs to the genus ragweed in the Asteraceae family. It is a flowering plant, so it belongs to angiosperms. In addition, it does not contain lignified cells and is a type of herbaceous plant.

Dolphin grass grows in a variety of places.

Dolphin grass generally prefers moist soil next to rotten holes. It is afraid of drought and cold, so it generally grows in wasteland, roadsides, and ditches, and is mainly distributed in the Yangtze River basin in China. It originated in North America.

What does dolphin grass look like.

Dolphin grass is an annual plant. Its stems are erect and generally grow to be between 20 cm and 150 cm tall. The tip of the stem has some conical branches. The flowering period is from August to September, and the fruiting period is from September to October.

Dolphin grass efficacy and uses.

Dolphin grass is not poisonous, but it can not be eaten directly, because its pollen can cause allergic reactions when it comes into contact with people, so it can generally not be touched and can only be planted as an ornamental plant.