Spiranthes infernalis
Spiranthes infernalis, common name Ash Meadows lady's tresses, is a rare species of orchid known from only four locations in Nevada, all close to one another. The type locale is inside Ash Meadows National Wildlife Refuge, in Nye County approximately WNW of Las Vegas. The site is a seasonally wet meadow.
The epithet infernalis means "of the underworld" or "of the nether regions", in reference to the extremely hot climate of the region.