I almost missed them also! They are growing across from the solar greenhouse in the old nursery area at GITW.Very nice specimens! Where are those, I have overlooked them when touring through.
Why, I do believe it is Asarum canadense, Marco. Wild Ginger, and one of the plants I've learned the name of. My list is growing, slowly...great photos Heather. Whats the plants growing on around them?