Syst. Nat. ed. 10, 2: 1044, 1369. 1759 ,
Phenology: Flowering Mar–May; fruiting Jun–Nov.
Habitat: Moist, often slightly acidic and sandy soils, wooded floodplains, stream banks, borders of swamps, hammocks, roadsides
Elevation: 0-1600 m
Ala., Ark., Fla., Ga., Ill., Ind., Ky., La., Mich., Miss., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Va., W.Va.
Two poorly defined taxa have been segregated from Halesia carolina at the species level or below. The mountain entity, H. monticola, is a tree to 20 meters or more with relatively large flowers, deeply included stamens, and relatively large fruits. The more often recognized coastal-plain entity H. parviflora is a shrub with smaller flowers, exserted stamens, and clavate fruits. P. W. Fritsch and S. A. Lucas (2000) have demonstrated that the characters used to delimit segregates vary either irregularly or more or less continuously with latitude.
Halesia carolina is not native in Michigan, New York, Pennsylvania, and Rhode Island but has been locally naturalized in these states.