Cypripedium passerinum

Quick Characteristics:

Cypripedium passerinum Richardson, commonly known as the Sparrow's Egg Lady's Slipper, is found throughout the interior of Alaska, across Canada to Hudson Bay, and south to northern Montana where it grows in moist coniferous forests, mixed woodlands, sphagnum bogs, thickets, stream banks, and lake margins. It produces one or two small white flowers on a leafy stem. The flowers have straight petals and a green dorsal sepal covering the egg-shaped labellum. Purple spots appear on the labellum's base, orifice, and interior wall. The green flower bract is prominent and upright. It grows from about 12-50 cm high. The photo was taken by Carl Frederick in Canada.