Hua Hua has listened to the adults in the family since she was a child: wildflowers on the side of the road, you don't pick ~ In fact, the wildflowers on the side of the road really can't be picked randomly, light is unwell, heavy is life-threatening! Come and identify it!
1. Oleander
I remember that Hua Hua first knew the oleander plant in the "Biography of Zhen Huan", And An Lingrong explained to the concubines the toxicity of oleander.
I don't know when oleander began to appear frequently on both sides of the road, as an indispensable green belt of the city, greatly beautifying the city.
Because of the beautiful appearance of oleanders, many passers-by can't help but come forward to pick, and when it comes to the oleander period, there will always be oleander poisoning incidents on the news.
The body of oleander contains a variety of toxins, especially a liquid called oleandrin, which will be poisoned once the human body is exposed, and even endanger the heart, and it is also a toxic Chinese herbal medicine from the perspective of Chinese medicine.
However, oleander is so toxic, why is it still cultivated as urban greenery?
Oleander has a strong ability to adsorb dust, and can even be said to be one of the plants with the strongest suction ability in the world, and has resistance and adsorption to various harmful gases in the air. In addition, the vitality of oleander is also very strong, even if it is covered with dust, it can still grow vigorously.
2. Greening mang
As the name suggests, it is a mango used for urban greening, and the green mango is one of many mango species, which belongs to the inedible mango species.
Different from oleander, because of its specific growth environment, green mango basically only appears in Guangdong, Guangxi and other green belt areas, and the main role of green mango is to shade people and absorb car exhaust.
Because of the long-term absorption of excessive exhaust gas, the content of heavy metals such as lead and cadmium in mango fruit may be higher, and the standard of spraying pesticides in street trees is also different from that of orchards, so the harm to the human body such as social harm can be explained.
3. Tulips
In April and May 2021, The Tulip Park in Shanghai brushed Weibo, and Hua Hua also saw many friends who went to enjoy the flowers and shoot in the circle of friends. Tulips have a very unique appearance, and large and long petals bloom vertically, making tulips very recognizable and have high ornamental value.
But! Tulips are for viewing only and should not touch their flowers.
Tulip flowers contain toxic soda, if you are in contact with tulips for a long time, stay with tulips for a long time, it will cause physical discomfort, which is manifested as dizziness and swelling, and in severe cases, it may lead to hair loss.
Tulips are highly medicinal, and although they do not have much improvement in the environment on the side of the road, they are very much in line with Shanghai's urban positioning: elegant and noble. In European countries, tulips also represent the meaning of victory. In addition, it promotes the spread of charity activities and has certain commercial value.
4. Morning glory
Morning glory is also called trumpet flower because of its shape similar to a trumpet. When Hua Hua was in elementary school, every year in the summer, the fence outside the school was full of morning glory flowers, which was really energetic and vibrant, but the teacher said that it could not be picked randomly.
The red, blue, and purple morning glory commonly seen in life is basically non-toxic, but there is a black morning glory that is toxic, and the toxins on its body should be avoided as much as possible, but the black morning glory is not common.
What is really poisonous about morning glory is the black seeds. The seeds of morning glory are divided into black and white, black seeds as medicinal materials have certain medicinal value, but remember not to use directly, even as a traditional Chinese medicine, if overdose, there will be vomiting, diarrhea and other symptoms, severe cases will also be coma.
p.s. black morning glory is not strictly a morning glory, it is called a bowl flower, but it looks exactly like a morning glory.
After seeing these common but poisonous roadside flowers, do you have any palpitations? In fact, no matter how beautiful the flowers and plants you see on the side of the road, you can't pick them without understanding their characteristics