Fig buttercup in Wake County, NC

The fig buttercup, or lesser celadine (Ficaria verna) is an introduced, aggressive species that is rapidly colonizing our area, particularly along streams. We need your help to understand where it has spread so we can treat it effectively. And we have to move fast; the plants flower in March-April and are gone by June.
Identification: lush, often large clumps of rubbery, heart-shaped, dark-green leaves on stalks; netted veins on leaf undersides. Attractive, glossy multi petaled yellow flowers in March and April on short stalks no more than one foot above the ground.
We need your help to map this species across Wake County so our natural resource managers can move quickly to treat effectively.