‘Wildflower’ Rudbeckia ID?

I recently returned from a spell away to find all the arable field edges, ditches and riverbanks of my local valley aglow with vast swathes of Rudbeckia - gorgeous, but doubtless a farmer’s menace! The sudden proliferation must have been because we had loads of rain this year, as opposed to last year’s drought. I assume they must have originally been garden escapees? Definitely some sort of Rudbeckia??
Here’s a few I picked for ID purposes, flowers about 10cm across:

Here’s a few I picked for ID purposes, flowers about 10cm across:

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