Viola hastataMichx.

Halberd-leaved violet

WFO wfo-0001144637 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Viola hastata, photographed by Clay Gibbons
fig. a Clay Gibbons, CC BY 4.0 / 2022-06-09 / obs. 205019586
Viola hastata, photographed by Scott Morris
fig. b Scott Morris, CC BY 4.0 / obs. 193376681
Viola hastata, photographed by Sarah Culliton
fig. c Sarah Culliton, CC BY 4.0 / obs. 196334000
Viola hastata, photographed by Jessica
fig. d Jessica, CC BY 4.0 / obs. 193391696
Viola hastata, photographed by Leila Dasher
fig. e Leila Dasher, CC BY 4.0 / obs. 191385354
Viola hastata, photographed by Hill Craddock
fig. f Hill Craddock, CC BY 4.0 / obs. 193861459
Viola hastata, photographed by Leila Dasher
fig. g Leila Dasher, CC BY 4.0 / obs. 191174977
Viola hastata, photographed by Bonnie Semmling
fig. h Bonnie Semmling, CC BY 4.0 / obs. 202347223

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 = 1,885 observations

Peak flowering in Apr, from 1,885 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.

  • Viola trifida Spreng.

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.