Earlier this year, we found the Cypripedium californicum, California lady’s slipper at quite diverse elevations – in a Humboldt County bog mixed with Darlingtonia californica at 150 meters, to a mountain seep mixed with Epipactis gigantea near 1000 meters in Plumas County.
They were always in very wet locations, from a very boggy area to a wet seep in or near running water. They appear to have a long season. Earlier this year, in a large group at 800 meters, we saw some were in seed and others were just starting to bloom. The Epipactis gigantea, stream orchid was a short distance away in the shade.
(Also posted on My HomePage, Native Orchid Conference, and North American Native (and Naturalized) Orchids)