Ludwigia hexapetala (Hook. & Arn.) Zardini, H. Gu, & P. H. Raven
Ludwigia, Six petal water primrose
2009 Keith Gagomiros 2021 Charles Russell 2019 Ron Vanderhoff 2022 Donald Burk 2024 Michael Chasse 2021 Brad Cook 2021 Jennifer Mo 2021 Jennifer Mo 2021 Charles Russell 2021 Brad Cook 2021 David popp
Ludwigia hexapetala is a perennial herb that is not native to California.
[Cal-IPC] Invasiveness: Ludwigia hexapetala (Uruguay water-primrose) is an aquatic plant (family Onagraceae) that forms dense mats in waterways, reaching above and below the water surface. This dense growth impedes water movement, blocks the growth of native plants, and reduces available habitat for waterbirds and fish. Although this species has been naturalized in California for at least 25 years, it has grown exponentially in the past several years, leading to increased concern over its impacts on waterways. Pieces of Uruguay water-primrose mats can catch on boat and other watercraft that then spread plants to new areas.
Cal-IPC Rating: High (link added by Mary Ann Machi)
[Wikipedia] Central & South America native: Ludwigia hexapetala, the water primrose, is a herbaceous perennial plant of the family Onagraceae. Native to Central and South America, its habitat includes the margins of lakes, ponds, ditches, and streams. Its stems may be immersed or fully emergent. It is a noxious invader of aquatic ecosystems in North America. (link added by Mary Ann Machi)
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2024. Berkeley, California:The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 12/09/2024).