The range of this species is primarily the coastal plain from Texas to North Carolina. A second subspecies (subsp. greenmanii) occurs in the Florida P , Tolerance, Not salt tolerant of inundation by salty or brackish water. Unknown , Considertions, All parts of this plant are poisonous if ingested.  Bruised leaves may produce a rash on bare skin , Habitat, Marshes, wet flatwoods, wet prairies, seepage slopes, edges of cypress wetlands, ditches , Did You Know?, Showy flowers Host plant for black swallowtail. Attracts generalist pollinators.