Cypripedium montanum is a member of the orchid genus Cypripedium. It is commonly known as large lady's slipper, mountain lady's slipper, white lady's slipper as well as moccasin flower. This latter is also the common name of Cypripedium acaule.
Description
Cypripedium montanum grows to be up to 70 cm (30 in) tall. The stem has alternating, plicate leaves. Atop the stem sits one to three large flowers. The sepals and petals tend to be maroon-brown while the pouch is white. This species is a close ally of Cypripedium parviflorum, so they appear to be very similar with the main difference being pouch color.
^Chen, J., Franklin, J. and Spies, T. 1995. Growing-season microclimatic gradients from clear-cut edges into old-growth Douglas-fir forests. Ecological Applications 5(1): 74-86.
