Pluchea petiolata Cassini; P. purpurascens (Swartz) de Candolle

Plants 20–80(–200) cm. Involu-cres 5–6 × 4–6(–7) mm. Function-ally staminate florets 6–13(–19).

Flowering Aug–Oct (year-round in south). Salt or brackish marshes and estuaries, near coast, less commonly in inland saline habitats, inland freshwater springs and ephemerally moist drainages; 0–50(–1400) m; Ala., Ariz., Ark., Calif., Fla., Ga., Kans., La., Md., Miss., Nev., N.Mex., N.C., Okla., S.C., Tex., Utah, Va.; Mexico; West Indies; Central America; South America (Colombia, Venezuela); w Africa; Pacific Islands.

Pluchea odorata var. odorata is naturalized in Hawaii. According to S. King-Jones (2001) Pluchea senegalensis Klatt is a synonym of Pluchea odorata var. odorata.