Dig deeper at SERNEC, a consortium of southeastern herbaria.

Check out EDDMapS.org to see where this has been reported.

Read more about Common Water-primrose at Vascular Plants of North Carolina.

(?) SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Ludwigia grandiflora ssp. hexapetala   FAMILY Onagraceae

SYNONYMOUS WITH Flora of North America
Ludwigia hexapetala

SYNONYMOUS WITH New combinations in the Florida flora III (Ward, 2012)
Ludwigia grandiflora var. hexapetala

INCLUDED WITHIN Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2011)
Ludwigia grandiflora

INCLUDED WITHIN Synthesis of the North American Flora (Kartesz, 1999)
Ludwigia uruguayensis

SYNONYMOUS WITH Separation of 2 species within Ludwigia uruguayensis (Zardini, Gu, Raven, 1991)
Ludwigia hexapetala

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 137-01-004?:
Ludwigia uruguayensis   FAMILY Onagraceae

INCLUDED WITHIN Gray's Manual of Botany (Fernald, 1950)
Jussiaea uruguayensis

COMMON NAME:
Common Water-primrose

         To see larger pictures, click or hover over the thumbnails.

John B. Nelson    jbn_5737859077_d763e5cc88

May    Berkeley County    

Lake Moultrie

Lower stems decumbent, creeping, or floating in mats, per Weakley's Flora (2012).

John B. Nelson    jbn_5738407460_ea785b8e89

May    Berkeley County    

Lake Moultrie

Ssp. hexapetala is understood to be larger flowered than ssp. grandiflora, per Observations on the Ludwigia uruguayensis Complex (Onagraceae) in the US (Nesom & Kartesz, 2000).

 COMPARE aquatic plants

JK Marlow    jkm080611_026b

June    Greenville County    SC

Lake Conestee Nature Park

Sepals (8-)12-19mm long, per Weakley's Flora (2012).

Richard and Teresa Ware    rtw_l_grandiflorahex

July        

Flowering stems more or less erect, pubescent with long soft hairs, per Weakley's Flora (2012).

JK Marlow    jkm160914_093

September        

SE-EPPC Aquatic Plant ID Workshop

Stems sparsely to densely villous (rarely glabrous), per Weakley's Flora (2015).

JK Marlow    jkm160914_169

September        

SE-EPPC Aquatic Plant ID Workshop

Primary leaves usually narrowly elliptic to oblanceolate & widest above middle, per Weakley's Flora.

WEAKLEY'S FLORA (4/24/22):
Ludwigia hexapetala   FAMILY Onagraceae

(?) SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Ludwigia grandiflora ssp. hexapetala   FAMILY Onagraceae

SYNONYMOUS WITH Flora of North America
Ludwigia hexapetala

SYNONYMOUS WITH New combinations in the Florida flora III (Ward, 2012)
Ludwigia grandiflora var. hexapetala

INCLUDED WITHIN Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2011)
Ludwigia grandiflora

INCLUDED WITHIN Synthesis of the North American Flora (Kartesz, 1999)
Ludwigia uruguayensis

SYNONYMOUS WITH Separation of 2 species within Ludwigia uruguayensis (Zardini, Gu, Raven, 1991)
Ludwigia hexapetala

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 137-01-004?:
Ludwigia uruguayensis   FAMILY Onagraceae

INCLUDED WITHIN Gray's Manual of Botany (Fernald, 1950)
Jussiaea uruguayensis