Cypripedium passerinum, known as Franklin's Lady's Slipper or the Sparrow's-egg Lady's Slipper, has flowers that are usually much smaller than the other Lady's Slippers in our area, around 5 cm and they look much smaller in proportion to the plant, which is usually around 35-40 cm. The flowers are usually single with occasionally two to a stem. They do not open widely either, the dorsal sepal nearly covering the lip on most flowers. They are nevertheless very attractive little flowers, but they do not grow in Washington, in fact, they are recorded from only one mainland state, Montana. We see them in the Canadian Rockies in British Columbia and Alberta.