Aplectrum hyemale; Orchidaceae (orchid family)
At last, at last, I have seen a native orchid in the wild.
Puttyroot grows a single leaf at ground level in the autumn. The leaf persists through the winter and spring, and is mostly or entirely dead and gone by the time the flowers open. The flower spike stands about 12″; each flower is about 1/2″ wide.
Here it is from about 3 feet away, hiding in a bunch of ferns: