This form of Tiarella cordifolia tends to clump instead of forming stolons, and used be considered a separate species.

This form of Tiarella cordifolia tends to clump instead of forming stolons, and used be considered a separate species.
This form of Tiarella cordifolia tends to clump instead of forming stolons, and used be considered a separate species.
Photo Credit: 
Paul S. Schmitt

Plants in Photo

Tiarella cordifolia var. cordifolia
Mundy Wildflower Garden, Cornell