I found this plant growing today along a concrete boat landing at Thurmond Lake. The lake level is incredibly low, allowing this to grow in an area that is usually underwater, so the soil is quite rich.

At first I thought it was some sort of salvia, I crushed a leaf and it did have an odor, but not like other salvias I've had. Any help with identification is appreciated.

Heliotropium indicum?

Stachytarpheta jamaicensis, porterweed, perhaps.

Looks like Indian Heliotrope (Heliotropium indicum) to me too!

Thanks, everyone! I think it is an Indian heliotrope.