Populus grandidentataMichx.

bigtooth aspen

WFO wfo-0000928328 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Populus grandidentata, photographed by Lynn Harper
fig. a Lynn Harper, CC0 1.0 / 2022-06-13 / obs. 205871971
Populus grandidentata, photographed by Lynn Harper
fig. b Lynn Harper, CC0 1.0 / obs. 203485619
Populus grandidentata, photographed by Lynn Harper
fig. c Lynn Harper, CC0 1.0 / obs. 203360795
Populus grandidentata, photographed by Matt Pelikan
fig. d Matt Pelikan, CC BY 4.0 / obs. 203934230
Populus grandidentata, photographed by Lynn Harper
fig. e Lynn Harper, CC0 1.0 / obs. 201829026
Populus grandidentata, photographed by Ethan Rose
fig. f Ethan Rose, CC BY 4.0 / obs. 205024230
Populus grandidentata, photographed by Nash Turley
fig. g Nash Turley, CC BY 4.0 / obs. 202473483
Populus grandidentata, photographed by jyoung2399
fig. h jyoung2399, CC BY 4.0 / obs. 201391707

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.

Flowering n = 47 observations

Peak flowering in Apr, from 47 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.

  • Populus tremula subsp. grandidentata (Michx.) Á.Löve & D.Löve

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.