Pedicularis racemosa 
Pedicularis rainierensis 
Pedicularis siphonantha 
Phelipanche schultzii 
Phelypaea coccinea 
Purple Eyebright 
Purple False Foxglove 
Purple Owl's-Clover 
Purple witchweed 
Red Bartsia 
Rhodope toothwort 
Scarlet Indian paintbrush 
Slender Broomrape 
Slender False Foxglove 
Thompson's Indian paintbrush 
Thyme Broomrape 
Towering Lousewort 
Valley tassels 
Vancouver groundcone 
Vlei ink-flower 
Whole Leaf Indian Paintbrush 
Whorled Lousewort 
Witchweed 
Wyoming Paintbrush