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

	Plants usually less than 20 cm high; NOT [Plants usually more than 20 cm high]
	Leaves mainly basal
	Stem leaves 0-3; NOT [Stem leaves numerous]
	Leaves entire or merely 3-toothed at apex; NOT [Leaves deeply dissected into at least 2 or 3 lobes]
	Heads solitary; NOT [Heads 2 to many, or both]
	Heads with well-developed ray florets; NOT [Heads discoid or with short inconspicuous ray florets]