Cypripedium californicum, the California lady's slipper, is a member of the orchid genus Cypripedium, the lady's slipper orchids, native to the western United States.

It can grow to be up to over a meter in height and has alternate, plicate leaves the length of the stem.

The petals and sepals tend to be greenish-brown while the small pouch is pure white with occasional pink spots.

[2] it has a very restricted range and can only be found in the mountains of southwestern Oregon (including the Kalmiopsis Wilderness) and northern California.

[3][4] It prefers the margins of woodland streams in open coniferous forests.