United States, Florida, Escambia, W end of Santa Rosa Island, at Gulf Is Nat Ssh. N of Battery Langdon. N30.320877° W87.260731°
Somewhat protected area in coastal strand. Soil white sand. Spontaneous young plant 3 ft tall. With Heterotheca subaxillaris. Commonly cultivated in Escambia Co, but seen only in the coastal strand of western Santa Rosa Island in natural populations.