Volunteer in a pot- either of local (Charleston) origin, or via the SC nursery I bought a Penstemon dissectus from. Possibly a spurge?
Thanks for having a look,
Virginia
Hi Virginia,
yes, it is a spurge. I’m rather certain it is Euphorbia hirta, a pantropical weed.
Sincerely,
Steve Hill, Ph.D., Botanist, SCNPS