I originally copied this list from kueda, who had this to say:

Orchid species native to our fine state. List taken largely from Calflora. I've tried to avoid infraspecies and hybrids. The following are taxa on Calfora that I couldn't find other info on and was not sure about adding to the DB:
Platanthera tescamnis

Updated from: https://www.inaturalist.org/check_lists/7085-California-Native-Orchids