Brickellia eupatorioides var. eupatorioides
Plants 30–150 cm. Leaves opposite; petioles 1–10 mm; blades 1- or 3-nerved from bases, broadly rhombic-lanceolate to narrowly lanceolate, 25–100 × 5–40 mm, margins entire or ± dentate. Heads in corymbiform arrays. Peduncles 5–20 mm. Involucres 7–11 mm. Phyllaries green to stramineous, sometimes purple-tinged (lengths of outer to 1/2 inner, apices acute to acuminate, not contorted). Florets 6–15; corollas pale yellow to maroon, 4.5–6 mm. Cypselae 4–5.5 mm. 2n = 18.
Phenology: Flowering May–Oct.
Habitat: Open areas, wide range of soils
Elevation: 200–2300 m
Ala., Ark., Fla., Ga., Ind., Ky., La., Md., Miss., N.J., N.C., Ohio, Pa., S.C., Tenn., Tex., Va., W.Va.