Ludwigia peploides(Kunth) P.H.Raven

floating primrose-willow

WFO wfo-0000443277 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Ludwigia peploides, photographed by Zakqary Roy
fig. a Zakqary Roy, CC BY 4.0 / 2022-06-02 / obs. 202781649
Ludwigia peploides, photographed by Thomas Mesaglio
fig. b Thomas Mesaglio, CC BY 4.0 / obs. 192783015
Ludwigia peploides, photographed by Michelle W. （鍾偉瑋）
fig. c Michelle W. （鍾偉瑋）, CC BY 4.0 / obs. 191233184
Ludwigia peploides, photographed by Mark Apgar
fig. d Mark Apgar, CC BY 4.0 / obs. 201590079
Ludwigia peploides, photographed by Diana Foreman
fig. e Diana Foreman, CC0 1.0 / obs. 192383663
Ludwigia peploides, photographed by Michelle W. （鍾偉瑋）
fig. f Michelle W. （鍾偉瑋）, CC BY 4.0 / obs. 191231647
Ludwigia peploides, photographed by Diana Foreman
fig. g Diana Foreman, CC0 1.0 / obs. 192381035
Ludwigia peploides, photographed by Annika Lindqvist
fig. h Annika Lindqvist, CC BY 4.0 / obs. 194907623

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 1,195 observations

Peak flowering in Jul, from 1,195 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 39 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Isnardia repens DC.
  • Jussiaea berteroana Steud.
  • Jussiaea boydiana Featherm.
  • Jussiaea california Jeps.
  • Jussiaea diffusa var. californica (S.Watson) Greene ex Jeps.
  • Jussiaea fluitans G.Don
  • Jussiaea glandulosa Larrañaga
  • Jussiaea gomezii Ram.Goyena
  • Jussiaea inclinata Blanco
  • Jussiaea mendocinensis Gillies ex Hook.
  • Jussiaea montevidensis Spreng.
  • Jussiaea oblonga Gillies ex Hook.
  • Jussiaea patibilcensis Kunth
  • Jussiaea peploides Kunth
  • Jussiaea polygonifolia Willd. ex Steud.
  • Jussiaea polygonoides Kunth
  • Jussiaea pumila Gillies ex Hook.
  • Jussiaea ramulosa DC.
  • Jussiaea repens var. californica S.Watson
  • Jussiaea repens var. glabrescens Kuntze
  • Jussiaea repens var. minor Micheli
  • Jussiaea repens var. montevidensis (Spreng.) Munz
  • Jussiaea repens var. peploides (Kunth) Griseb.
  • Jussiaea repens var. ramulosa (DC.) Griseb.

and 15 more.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.