This thistly entity is a teasel flower. It is borne aloft a magnificently statuesque plant most often to be found on waste ground. It seeds promiscuously and every part of the plant is prickly. In past times some of those prickles were put to good use. The dried flower heads were split and pinned to a cruciform structure, called a teasel cross or card (a bit like a table tennis bat) and used in the weaving industry to raise the nap on finished cloth.
There are photos and more information HERE.
I’m sorry I can’t tell you what kind of little bumble bee this is; the ID charts defeated me though my best guess is a carder bee. (Which would be appropriate). I anyway like the way its colour scheme ‘goes’ with the teasel’s ashy tones. I also admired the way it picked its way so gingerly through the spiny elements to reach the nectar in the tiny segmented florets.
This scene was captured over the garden fence in the guerrilla garden, where all is presently thriving. Here is a field-side perspective with the teasel bringing up the rear. I transplanted it as a seedling found on an abandoned allotment plot. I might just regret the introduction, but for now it’s looking rather splendid.