common beneath oak woods in NC Piedmont; "blistered" leaves were distinctive
I'm not sure what kind of plant this is. It looks like just a leaf sticking up out of the ground. There was a cluster of them growing under an American Beech trees.
The Crane-fly Orchid (Tipularia discolor) is a perennial terrestrial woodland orchid, a member of the Orchidaceae. It is the only species of the genus Tipularia found in North America. This orchid grows a single leaf in September that disappears in the spring. The leaf is green with dark purple spots. The orchid blooms in mid-July to late August. The roots are a connected series of corms. Its roots are edible. They are starchy and almost potato-like.