Quercus palustrisMünchh.

pin oak

WFO wfo-0000292323 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Quercus palustris, photographed by Jeff Clark
fig. a Jeff Clark, CC BY 4.0 / 2021-11-01 / obs. 166792974
Quercus palustris, photographed by Tony Rebelo
fig. b Tony Rebelo, CC BY-SA 4.0 / obs. 176172795
Quercus palustris, photographed by Tony Rebelo
fig. c Tony Rebelo, CC BY-SA 4.0 / obs. 173013132
Quercus palustris, photographed by Lynn Harper
fig. d Lynn Harper, CC0 1.0 / obs. 150111445
Quercus palustris, photographed by Katja Schulz
fig. e Katja Schulz, CC BY 4.0 / obs. 182158717
Quercus palustris, photographed by Eric Verna
fig. f Eric Verna, CC BY-SA 4.0 / obs. 155613808
Quercus palustris, photographed by Reuven Martin
fig. g Reuven Martin, CC0 1.0 / obs. 147795773
Quercus palustris, photographed by Tom Field
fig. h Tom Field, CC BY 4.0 / obs. 148875706

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 = 54 observations

Peak flowering in Apr, from 54 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 3 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.

  • Quercus palustris var. heterophylla Cockerell
  • Quercus rubra var. dissecta Lam.
  • Quercus rubra var. palustris (Münchh.) Kuntze

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.