Three families want this one

Parnassia fimbriata, July 28, 2022

P. fimriata, Wet Gulch, 11,200’, August 5, 2022

Common & scientific name
Fringed Grass of Parnassus, Parnassia fimbriata

Family
Saxifrage, Saxifragaceae, Staff Tree, Celastraceae, or Parnassus, Parnassiaceae

Location
Roadside, 10,600’

Fun, weird, helpful, or little known fact
This bright white, late-blooming, water-loving flower is always a delight to find, often in roadside ditches where orchids and elephanthead bloomed earlier.  Its petals are fringed at the base, and its leaves heart-shaped.  While the family it belongs to is in dispute (or in transition may be a better way to put it), its delicate beauty is not!