Of the Evening Primrose family (Onograceae), the Ludwigia polycarpa.

Many-Fruit Primrose Willow

Of the Evening Primrose family (Onograceae), the Ludwigia polycarpa.

"Ludwigia Jussiaeoides. 1. a flower with two sepals and all the petals cut off; 2. a calyx and inferior ovary; 3. a transverse section of the ovary; 4. a seed with the distinct raphe; 5. an embryo extracted." -Lindley. 1853

Wingleaf Primrosewillow

"Ludwigia Jussiaeoides. 1. a flower with two sepals and all the petals cut off; 2. a calyx and inferior…

Of the Evening Primrose family (Onograceae), the water purslane (Ludwigia palustris).

Water Purslane

Of the Evening Primrose family (Onograceae), the water purslane (Ludwigia palustris).

Of the Evening Primrose family (Onograceae), the seedbox (Ludwigia alternifolia).

Seedbox

Of the Evening Primrose family (Onograceae), the seedbox (Ludwigia alternifolia).