Pretty sure that’s a weedy Euphorbia maculata or similar.

Thank you. It kind of looks like Euphorbia but the stems are unlike the Euphorbia stemsI have seen. I will keep trying to figure it out.

Can you post a better picture? It's very dark and details are not visible. FWIW I agree on the Euphorbia id. If you tear off a leaf does it bleed milky sap?

With the photo provided, I also think a weedy Euphorbia, but a better lit and focused image would confirm.

welcome to the ID forum ... it also helps.. that you add a scale to your pix.. especially with extreme close up pix .. its hard to tell if those leaves are an inch long.. or 1/4 inch ... anything we all might recognize.. or a ruler ....

location sometimes helps also ... or maybe its there.. and i just cant see it ...

come back often ...

ken

btw: did the plant go outside for summer.. or did you add some outdoor compost to the pot .... its mysterious to get common outdoors weeds popping up indoors otherwise ...

Not seeing the photos.

eta now they're showing...

Simply remove a leaf and see if it bleeds white as stated above!

Thanks everyone for your comments

There are new photos posted between 10 and three hours ago.