Platanthera yosemitensis is a terrestrial orchid in the genus Platanthera
Plant is found growing in the nine wet montane meadows between the main stem and the South Fork of the Merced River in Yosemite National Park in the United States at elevations of 1800 to 2700 meters.
Plants bloom from in the summer with many 8 mm wide flowers. The orchid has a foul smell that has variously been described as "corral of horses, asafetida, strong cheese, human feet, sweaty clothing, or simply disagreeable".
First collected in 1923, it was not identified as a distinct species until 2007.
Plant grows in cool conditions with moderate lighting.
Common name:Yosemite bog-orchid