Ludwigia alternifolia L.
Family: Onagraceae
false-loosestrife, seed-box, square-pod water-primrose
Ludwigia alternifolia image
Emmet J. Judziewicz  
Ludwigia alternifolia image
Emmet J. Judziewicz  
Etymology: Ludwigia: named for Christian Gottlieb Ludwig (1709-1773), a professor in Leipzig
Plants: erect, perennial, 20"-40" tall forb, usually with many branches; clustered, fleshy, fibrous roots
Leaves: alternate, lance-like to linear, mostly stalkless
Flowers: yellow to white, 4-parted, 1/2" wide, often found with the petals fallen and only the pinkish sepals remaining; blooms July-Aug.
Habitat: wet; woods, shores
Conservation Status: Native
Ludwigia alternifolia image
Emmet J. Judziewicz  
Ludwigia alternifolia image
David Seils  
Ludwigia alternifolia image
Sue R. Crispin  
Ludwigia alternifolia image
David Seils  
Ludwigia alternifolia image
David Seils