Specimen Information

Ludwigia peploides glabrescens
Ludwigia peploides glabrescens
(floating primrose-willow)
Native Transplant

Specimen ID1715044
Common Namefloating primrose-willow
LocalityAlong 1/2 mile of the east shore of Olive Creek Lake, in Olive Creek State Recreation Area, near Hallam, Nebraska. The species occupies much of the shoreline from the location coordinates above (adjacent to the Area 2 campground), then north 1/2 mile to the dam.
Mapping AccuracyAccurate
HUC8 NameSalt
HUC8 Number10200203
HUC10 NameUpper Salt Creek
HUC10 Number1020020301
HUC12 NameOlive Creek Lake
HUC12 Number102002030101
Collection Day11
Collection Month9
Collection Year2022
Year AccuracyActual
CommentsOn 9/11/22, I found a 15x40 foot patch of this species at the location specified by the coordinates above. I reported the sighting to Nebraska Game and Parks, because they manage this State Recreation Area. I returned on 10/16/23 to find that the species has spread 1/2 mile north to the dam, occupying much of the shoreline. It may also have spread to the west shoreline—I didn’t check. This needs immediate attention before it spreads to the rest of this lake’s shore, downstream from the lake, and/or to other bodies of water via watercraft.
Record TypePersonal communication
Earliest Recordlocale
VerifierIan Pfingsten
Ludwigia peploides glabrescens
Ludwigia peploides glabrescens


The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/16/2024].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.