NC INVASIVE PLANT COUNCIL
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Creeping Water Primrose

Ludwigia hexapetala
Creeping Water Primrose has infested many waterways from North Carolina southwards.  This plant typically begins infesting aquatic sites by establishing right along the shoreline.  Over time the rhizomes "creep" out to deeper water.  It forms dense patches that are often monotypic.  Sometimes found mixed with Alligatorweed or Parrotfeather (both are also invasive).

Ovate leaves arranged as rosettes develop in the winter/spring and float at the surface.  As summer arrives the new leaves are lanceolate (oblong with pointed tips).  The alternate pattern of the leaves becomes more apparent once the plants develop past the rosette stage.  Yellow flowers with 5 to 6 petals are born well above the surface.  Blooms throughout the summer.  Stems turn from light green to reddish brown and begin to lose their leaves towards the end of summer and into fall.

There are multiple species of Water Primrose and some require carful observation to distinguish.
Fact Sheet: Creeping Water Primrose
NC Piedmont and Coastal Plain sites.
Photo Credit:  R. Emens, NC Division of Water Resources
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  • Home
  • About
    • Donate
    • Invasives 101
    • Membership
    • Board of Directors >
      • NC-IPC ByLaws
    • Contact
    • Listserve
  • News
    • Iverson Scholarship
    • Wildland Weeds Magazine
    • Calendar >
      • 2018 Workshop
  • NC Invasive Plants
    • Ailanthus Altissima (Tree-of-Heaven)
    • Elaeagnus umbellata (Autumn Olive)
    • Ficaria verna (Fig Buttercup)
    • Imperata cylindrica (Cogongrass)
    • Ligustrum sinense (Chinese Privet)
    • Ligustrum vulgare (Wild Privet)
    • Lonicera japonica (Japanese Honeysuckle)
    • Microstegium vimineum (Japanese Stilt Grass)
    • Nandina domestica
    • Nymphoides indica (water snowflake)
    • Paulownia tomentosa (Princess Tree)
    • Persicaria perfoliata (Mile-A-Minute Vine)
    • Pueraria montana (Kudzu)
    • Pyrus calleryana (Bradford Pear)
  • Annual Symposiums
    • 2022 Joint Symposium >
      • 2022 Speaker Presentations
    • 2021 Virtual Conference
    • 2019 Joint Symposium >
      • 2019 Presentations
    • 2018 Annual Symposium
    • 2017 Annual Symposium
    • 2016 Annual Symposium >
      • 2016 agenda
    • 2015 Annual Symposium >
      • 2015 Presentations
      • 2015 Agenda
  • Projects
    • Fig Buttercup Project
    • Eno River Hydrilla Project
    • Awareness Week
  • Awards
    • 2015 Student Competition Winners
    • 2015 EIA Award
    • 2014 EIA Award