Digitalis "Silver Fox"

Is this a purpurea? I do like the white ones better than the common purple, I take seed each year of my unnamed White, but always the bees have interfered with their pollination.

It's a hybrid. So far no seed at all.
I do have seed for a pure white D.purpurea that I grew in isolation if you want some.

Thank you, but I have a couple of good pure whites.