Can you identify this for me please?

in Plants
I found this on top of a potato pot I emptied days ago. Its NOT true potato seed, I have those, this is nothing like those. The dying stem they're attached to is slimmer than the dying stems of my spuds. The pot is next to pots of corn, an onion in seed (lovely and tall!) some salad, chives, and dill, sugar beet, but looks nothing like any of those as you can see.
They're VERY purple and are sprouting green leaves/or ?

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They look like small potato tubers to me.
Yeah its on there now!
Potato seed pods are round are look like tomatoes. (same family but poisonous)
They look like tubers that havn't had the time to swell very much.
Potatoes grow tubers from the stem if those are buried (or partially so) and tubers turn green then purple on exposure to sunlight. I think that's what has happened here.
I have other tiny potatoes that I left in the pot, and they just went green, just as they normally do. I've grown spuds for years, never had any go purple, and never had any with green shoots coming out of them. Also the stem is not like spuds stems, much thinner.
I just been looking online and there are actually purple sugar beets, I didn't know this! But, those grow one per stem.. so.. still not sure.
Sugar beet doesn't grow like that whatever colour it is
They look like mini spuds to me
In the sticks near Peterborough
I agree - small potatoes.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.