4, 5, 6, 7
June - October
0.9 - 2.0
Leaves without petioles and internodes obviously winged. 4-7 sepals. Purple stems. Look alike: Lythrum alatum- winged stems but opposite leaves.
Wingleaf primrose-willow grows in swamps and wet places throughout Louisiana and east Texas.
Marshes and ditches, swamps, and wet places, shallow water.