Hydrophyllum tenuipesA.Heller

Pacific Waterleaf

WFO wfo-0000726718 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Hydrophyllum tenuipes, photographed by Holly Sanderson
fig. a Holly Sanderson, CC BY 4.0 / 2022-05-21 / obs. 199644857
Hydrophyllum tenuipes, photographed by rappman
fig. b rappman, CC BY 4.0 / obs. 198001107
Hydrophyllum tenuipes, photographed by Sean Haight
fig. c Sean Haight, CC0 1.0 / obs. 193316224
Hydrophyllum tenuipes, photographed by giantcicada
fig. d giantcicada, CC BY 4.0 / obs. 195054624
Hydrophyllum tenuipes, photographed by Roger Rittmaster
fig. e Roger Rittmaster, CC BY 4.0 / obs. 204699545
Hydrophyllum tenuipes, photographed by James H. Thomas
fig. f James H. Thomas, CC BY 4.0 / obs. 190413674
Hydrophyllum tenuipes, photographed by giantcicada
fig. g giantcicada, CC BY 4.0 / obs. 187645582
Hydrophyllum tenuipes, photographed by Sierra Weir
fig. h Sierra Weir, CC BY 4.0 / obs. 191343903

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 = 479 observations

Peak flowering in May, from 479 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 1 synonym

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.

  • Hydrophyllum tenuipes var. viride Jeps.

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.