Solidago sempervirens subsp. mexicana
Sida 20: 1615. 2003.
Involucres 3–4 mm. Rays 7–11. Disc-florets ca. 10–16.2n =18.
Phenology: Flowering Sep–Dec.
Habitat: Dunes by ocean, edges of brackish marshes
Elevation: 0–10 m
Ala., Conn., Del., Fla., Ga., La., Md., Mass., Miss., N.J., N.Y., N.C., Pa., R.I., S.C., Tex., Va., Mexico (Tabasco), Mexico (Tamaulipas), Mexico (Veracruz), West Indies, Central America
Subspecies mexicana is found along the coast from Massachusetts to Texas and southward. It may hybridize with Solidago stricta along the Florida Gulf coast.