savannah primrose-willow
Ludwigia virgata Michx.

Ludwigia virgata is a member of the Onagraceae family, commonly known as savannah primrose-willow. It was first described by Michx. in 1803.
Description
Ludwigia virgata, or savannah primrose-willow, is a plant species in the Onagraceae family. It is native to several states in the southeastern United States, including Alabama, Florida, Georgia, Maryland, Mississippi, North Carolina, South Carolina, and Virginia. The species was first published in 1803 by the botanist Michx.
Other common names
savannah primrose-willow
Distribution
Alabama · Florida · Georgia · Maryland · Mississippi · North Carolina · South Carolina · Virginia
Synonyms
Ludwigia junceaLudwigia ramosissimaLudwigia luteaLudwigia tuberosaIsnardia virgataLudwigia alternifolia