Publication: In A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 294.
selected vouchers: Not at WTU; WS?
Notes: FNA20:"Variety hieraciifolius is highly variable and mildly weedy. In the flora area, it occurs naturally from Quebec to Florida and westward to about the limits of the eastern deciduous forest; it is sporadically adventive on the West Coast and elsewhere in temperate regions."