Plant/weed identification please?

[Bluntness100]

I have these growing in pots, I’m fairly sure they are weeds, but we have no idea what they are, does anyone know please?

Hmmm thanks mere. The mystery remains, maybe if it flowers it will become apparent...

It had better flower, we all want to know!

I’ll update as soon as it does.

It’s very odd Actually it’s now sprouting in many of my patio plant pots. Ones with mature plants in. Christ knows what it is, but it’s a prolific spreader.

Could it be orach?

I can see the similarity but I’m not sure it is to be honest..