Virginia Tech Weed Identification Guide

Creeping Primrose: Ludwigia palustris

Weed Description:  A creeping aquatic weed that grows along shorelines, in shallow water, and less often submersed in shallow water.

Leaves: Arranged oppositely along the stem, oval-shaped to elliptic in outline, approximately 1/2 to 1 inch long.  The leaves of creeping primrose are highly variable in color, from green to slightly red-tinged or entirely red- or purple-tinged.  Leaves are without hairs (glabrous).

Stems:  Creeping and rooting at the nodes.

Flowers: Arise from the areas between the stems and the leaves (leaf axils) and are inconspicuous and without petals.

Identifying Characteristics: Aquatic plant primarily of shorelines with opposite leaves and stems that root at the nodes.  Additionally, the red- or purple-tinged leaves that sometimes occur help in the identification of creeping primrose.   Several other primrose species occur as aquatics, however creeping primrose is the species most commonly encountered.