What is the name of this decay?

I continue to explore nature. This time, bushes of a beautiful and rather unusual plant caught my eye. I decided to find out what it is. That is, the name of the plant itself.

I strive to learn the world of plants. After all, nature does not create superfluous. Every plant matters. It plays a certain role in the life of the environment. Almost all plants can bring a lot of benefits.

For example, wormwood, Chernobyl, sweet clover, tansy, purslane, knotweed, and so on. There are many useful plants. Each is used to treat a particular disease. By the way, I have a story about a doctor who began to treat not with medicines, but with herbs. The professional 2nd doctor became an herbalist. She was approached by people not only from her native village, but also from all over the country. But we'll talk about this woman later.

Now I want to ask the community what this plant is called. Maybe someone knows what useful properties it has. Although, maybe it, this very plant, can cause irreparable harm to a person.

When I find out the name of this plant, I will immediately begin to collect information about it. Accordingly, I will share with you the collected data. By the way, plants have recently helped me get rid of many troubles. Not only with health, but also in everyday life. Yes, plants can help get rid of pests, insects, bacteria, and so on. They help keep the harvest.

So, help me solve this riddle. What is the name of this plant? As you can see, it grows in a large cluster. I would say bushes. I saw him at the edge of a mixed forest. This forest is dominated by: oak, ash, maple and wild cherry. Yes, there are not very many herbaceous useful ones. Yet. On the outskirts of the forest, next to these bushes, thorns grow. There is one rosehip bush. This plant grows with such neighbors.

Write your options in the comments. I would be grateful to anyone who can help me find out what kind of plant this is. It will be in my catalogue.

I wish you all good health and a peaceful sky over your head!