Black Pollen?? 🤔

[italic63]

Hi from Italy again.
During the routine weekly inspection of my new nuc (old queen on 4 frames) I saw the queen and plenty of fresh brood. Some stores although I had to feed them as it's been raining non stop for the last 10 days here.
I did notice however something I've never seen before. I looks like black Pollen. The wax is a nice yellow colour as it newly drawn from Foundation.
The black stuff looks dry and is sitting in the bottom of worker cells.
Please see attached photos. Hopefully it's not some kind of disease!
Thanks as usual...

 

[Curly green finger's]

Poppy?

 

[italic63]

It's possible...I have seen poppies growing wild in the fields around here.
Thanks

 

[Curly green finger's]

It's possible...I have seen poppies growing wild in the fields around here.
Thanks

Wild poppy can be grey dark green oriental poppy black

 

[fian]

It can also be pollen from a member of the echium family and even digitalis. In this case you will have to be careful with honey for human consumption since both plants contain toxic substances.