Cuspidata: Answers to key questions in Budd's Flora leading to this species. 

	leaves all basal; NOT [usually at least one stem leaf]
	scape with a solitary flower

Nothocalais: Answers to key questions in Flora of Alberta leading to this genus. 

	juice milky; NOT [juice watery]
	stem NOT diffusely branched
	plants scapose, leaves all basal; NOT [plants with at least some cauline leaves, though they may be reduced to bracts]
	NOT [leaves few, cauline, mostly linear or reduced to scales]
	leaf margins conspicuously white villous-ciliolate
	heads solitary; NOT [heads few to many, rarely solitary]
	involucre of 2 or more series; NOT [involucre uniseriate or biseriate]
	involucral bracts more or less equal or somewhat imbricate in several series; NOT [involucral bracts in 2 unequal series]
	flowers all ligulate
	flowers all perfect
	flowers yellow
	achenes 5-10 nerved; NOT [achenes 4-5 ribbed]
	achenes NOT spinulose or muricate; NOT [at least upper body of achenes spinulose or muricate]
	pappus well developed, at least in part of capillary bristles; NOT [pappus of minutes scales or none]
	pappus NOT scale-like at the base, entirely of capillary bristles; NOT [pappus scale-like at the base, with plumose terminal bristles]
	pappus-bristles NOT plumose