Brickellia eupatorioides var. corymbulosa (Torr. & A.Gray) Shinners

Plants 30–200 cm. Leaves opposite; petioles 0–10 mm; blades 1-or 3-nerved from bases, lanceolate to lance-linear, 5–90 × 2–15 mm, margins entire or coarsely dentate. Heads in paniculiform or corymbiform arrays. Peduncles 5–25 mm. Involucres 8–15 mm. Phyllaries green to stramineous, sometimes purple-tinged (lengths of outer to 1/2 inner, apices acute to acuminate, not contorted). Florets 15–35; corollas pale yellow to pinkish lavender, 4.7–8 mm. Cypselae 2.7–5 mm. 2n = 18.