We will be rolling out several small fixes mid-day today (Jan 29.) We do not anticipate any disruptions or problems, but f you spot any unexpected issues after 12 noon (PST), please report them in the designated thread in the DG Site Updates forum.
This looks at lot like a young Ranunculus abortivus, "Kidneyleaf Buttercup". The basal leaves are not divided as they would be in R. sceleratus. Ranunculus abortivus is a widespread native in the south, and in damp soils a common "weed".