1a. Erechtites hieraciifolius (Linnaeus) Rafinesque ex de Candolle var. hieraciifolius
Erechtites hieraciifolius var. intermedius Fernald; E. hieraciifolius var. praealtus (Rafinesque) Fernald
Stems and leaves dry or turgid, not succulent. Receptacles 5–8 mm diam. Cypselae 2.3–3 mm, nerves 10–12. 2n = 40.
Flowering summer–early fall. Usually semidisturbed sites in open woods; 0–800 m; N.B., N.S., Ont., P.E.I., Que. Sask. Ala., Ark, Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., S.Dak., Tenn., Tex., Vt., Wash., W.Va., Wis.; Mexico; West Indies.
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.