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.

Phenology: Flowering May–Oct.
Habitat: Open areas, wide range of soils
Elevation: 200–2300 m

Distribution

• Generated Map
• Legacy Map

Ark., Colo., Ill., Ind., Iowa, Kans., Mich., Minn., Mo., Mont., Nebr., N.Mex., N.Dak., S.Dak., Tex., Wis.

Discussion

Selected References

None.

Lower Taxa

None.