Please identify this plant

If you mean the yellow flowers it's Yellow Loose strife. It grows abundantly in my garden but it's pretty and it's easy to pull out when there's too much.

Yellow Loosestrife died in my garden after a dry spell .
It needs moisture .
I forgot that it used to be attached to the bridles of horses to repel flies and can be burnt to repel insects in houses .
Another use - the flowers can be allowed to soak in water and the resulting liquid can be used to bath your naughty bits !
I don't know what the benefits are .
I can only guess !

Google search does a great job. Just use the little camera icon on the search bar next to the microphone

I would agree, it is loosestrife. I think it would be fine in a bed to itself in a corner of the garden but it totally wanted to dominate the bed I had it in and didn’t give other plants a chance. It took me years to get rid of it.

Covering a plant with heavy black plastic bags weighted down with stones or bricks will get rid of it or at least weaken it.