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Peruvian Primrosewillow     Ludwigia peruviana

The Peruvian Primrose Willow (Ludwigia peruviana) is a member of the Evening Primrose family (Onagraceae).  It is a non-native plant.  It is found in southern coastal states from Texas to Georgia, including throughout Florida.  It is listed as Category I on the Florida Exotic Pest Plant Council’s 2017 List of Invasive Plant species.

This plant looks a lot like the Mexican Primrosewillow, a native plant.  However, it is larger and more robust.  It can grow to a height of 10-12 feet.  The flowers are yellow and born singly in an upper leaf axil.  They can be up to 2 inches in diameter.  The 4, sometimes 5, petals surround a yellow center that has a large spherical stigma surrounded by 8 stamens.  The flowers can bloom from spring through autumn.

The hairy leaves are attached alternately on multi-branched stems that are also hairy when young.  The leaves are lance-shaped or ellipitical and have smooth or slightly toothed edges.  They can vary in length from 2 to 6 inches.

The cylindrical seed capsules are 1/2-inch to 1-inch long.  They turn brown with age, eventually splitting open to release their small seeds.

The photos on this page were taken in Deep Creek in Charlotte County. Additional information on this plant may be found by clicking on the following links:

     Atlas of Florida Plants

     USDA PLANTS Database