We removed this vining weed from our one of our flower beds. Looking to find leaves like this on the web, we didn’t have any luck.
It has tubers and this one was sprouting.
Above ground it is a vine, below ground there was far more to the root system than we expected. For scale, the squares are 18 inches (46 cm) on a side and 26 inches (66 cm) on the diagonal Fortunately there is thick layer on mulch on the flower bed and the root system was growing mostly on top of the soil making it somewhat easy to dig out.