In article ,
Eileen Gregory wrote:
I think it IS a weed! Keep a close eye on it. The Ranunculus that I
think it is would have no smell and has very inconspicuous flowers.

Ranunculus? That's the genus that buttercups are in.

We have Ranunculus "weeds" in and around the garden (R. acris, I
believe), but they have an obvious yellow flower (not blooming yet this
year, but soon). They're common in pastures and meadows.

--
Steve