Water-Willow
Justicia americana (Dianthera americana)
This plant grows in or beside shallow, still water. It puts up pairs of long, narrow, leaves with smooth edges--up to 8 inches long, but not more than 1 inch wide. Rising from the leaf axils come leafless stems supporting a cluster of small lobed flowers, each 1/2 inch or more across, of purple or white with dark purple markings. A cluster of flowers may be 1-1/4 inches wide.
1-3 feet, sun - partial sun. In or beside water.
Summer-Autumn (June-October).
Note the seed clusters and long leaves.
1 August 2020.
Water-Willow, 11 July 2020.