Viola glabellaNutt.

stream violet

WFO wfo-0001144633 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Viola glabella, photographed by Shane Johnson
fig. a Shane Johnson, CC0 1.0 / 2022-06-05 / obs. 204652272

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 = 2,038 observations

Flowering observations of Viola glabella by month
MonthObservations
Jan9
Feb28
Mar239
Apr777
May573
Jun304
Jul82
Aug8
Sep5
Oct4
Nov4
Dec5

Peak flowering in Apr, from 2,038 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.

  • Viola biflora var. sitchensis (Bong.) Regel
  • Viola canadensis var. sitchensis Bong. ex Ledeb.
  • Viola glabella var. remotifolia Suksd.

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.