Heliotropium curassavicum

Family: Boraginaceae
Common Names: Seaside Heliotrope, Salt Heliotrope

Native to USA: AL, AR, AZ, CA, CO, DE, FL, GA, HI, ID, IL, KS, LA, MD, ME, MO, MS, MT, NC, ND, NE, NJ, NM, NV, NY, OK, OR, PA, SC, SD, TX, UT, VA, WA, WY, + PR, VI. 
Native to CAN: AB, MB, SK