Some notations penciled in.
Digitized by Harvard Museum of Natural History 2006.
Drawing includes eleven views of interior of plant including three cross sections; details are highlighted in green, orange, and yellow.
This orchid, commonly known as the Large yellow lady's slipper, Yellow moccasin-flower, Nerveroot, Noah's ark, American valerian, and Whippoorwill's-shoe, is native to northern North America.
This drawing is part of a series of botanical drawings created by the Blaschkas to reference in constructing glass models for the Botanical Museum of Harvard University.