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Primrose Willow Ludwigia spp

Primrose Willows grow in shallow marshy areas, wet clearings, ditches and along the margins of canals and ponds.  Thirty different species have been observed growing in Florida.

Many Primrose Willows are emersed plants.  Some species are large and shrubby, growing to a height of 5-6 feet.  Others are small and floating only a few inches long.  Most have bright yellow flowers with 4 or 5 petals.  They usually bloom in all seasons except winter.  Their leaves are ovate to lance-shaped up to 6 inches long.  Stems are branched and sometimes have long hairs.

The above distribution maps for the Primrose Willow are from the Plants Database of the U.S. Department of Agriculture (USDA).


Peruvian Primrose Willow

Peruvian Primrose Wilow

Mexican Primrose Willow

Green Metallic Bee on Mexican Primrose Willow

Seaside Primrose Willow

The Mexican Primrose Willow (Ludwigia octovalis) is the most common.  The flowers are 1-1.5 inches wide with 4 bright yellow petals around a yellow center.  The petals have a small notch at the tip.  The plants grow to a height of 2-4 feet.  They are a native perennial found throughout most of Florida.

The Peruvian Primrose Willow (Ludwigia peruviana) also has 4 bright yellow flowers that are 1-2 inches wide.  This species is larger than the Mexican species and can grow to a height of 6 feet.  It is a non-native (invasive) perennial that grows throughout most of Florida.

The Seaside Primrose Willow (Ludwigia maritima) is a smaller and more slender plant that grows to a height of 2-3 feet.  It usually blooms only during the summer months.  It is a native perennial found throughout most of the state.

Mexican Primrose Willow


Peruvian Primrose Willow


Seaside Primrose Willow