Oh dear! I was hoping that it wasn't the air potato because I've heard how invasive they were. Now the real battle begins...trying to rid my yard of them. Thanks again to u both!

I wonder if this is Richardia brasiliensis (stems densely hairy toward the base) or R. scabra (stems modestly hairy or glabrous toward the base). Richardia does have flowers with 4-6 lobes. Similar genera, such as Diodia, Diodella, Mitracarpus, and Spermacoce have flowers with 4 lobes.

It looks like a Praxelis. Do the leaves give off a stink if you rub between the fingers?

Could you circle these tendrils because I still don’t see them however much I enlarge the picture? And please could you give measurements for the leaves? There’s nothing to give a sense of scale. Meanwhile compare with Abrus precatorius.