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. Flowering May-Oct. Open areas, wide range of soils; 200-2300 m; Ark., Colo., Ill., Ind., Iowa, Kans., Mich., Minn., Mo., Mont., Nebr., N.Mex., N.Dak., S.Dak., Tex., Wis.
From Flora of Indiana (1940) by Charles C. Deam
Usually found in sandy to very sandy soil in dry prairie habitats and infrequently on high, gravelly banks of streams.
Indiana Coefficient of Conservatism: C = 8
Wetland Indicator Status: n/a
Citation: The vPlants Project. vPlants: A Virtual Herbarium of the Chicago Region. http://www.vplants.org
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