[earth.com] General Info, Range: Abronia gracilis is a species of Magnoliopsida described by George Bentham. Abronia gracilis belongs to the genus Abronia, and the family Nyctaginaceae. Abronia, the sand-verbenas or wild lantanas, is a genus of about 20 species of annual or perennial herbaceous plants in the family Nyctaginaceae. Despite the common names, they are not related to Verbena (vervains) or lantanas in the family Verbenaceae. They are closely allied with Tripterocalyx. They are native to western North America, from Alberta and Saskatchewan, Canada, south to west Texas, California, Baja California and central Mexico, growing on dry sandy soils. (link added by Mary Ann Machi)