Dianthera angusta
Dianthera angusta, the pineland waterwillow, is a flowering plant. It grows in parts of Florida and a few areas of Georgia in habitats near lakes and pond as well as wet pineland and prairie areas. It is in the Acanthaceae family.
It has been placed in both the genus Justicia, and the genus Dianthera. In Georgia, this dicot perennial herb has been located growing in roadside ditches and with Hartwrightia in shallow sloughs and wet savannas.