Agree that is not a shrub or a bush!
It is a wild flower a weed.
Your pics lack detail for accurate id.
What are the leaves like?
Do the leaves up the stem clasp the stem?
Are they toothed with wavy edges?
Is it hairy?
It may be Picris hieracioides...
common name Hawkweed Oxtongue.
11 pics in link below...compare pic 10 leaf to yours.
https://www.floralimages.co.uk...
