Viola rostrata (Long-spurred violet)

Plate 1 figs. a–h

Viola rostrata, photographed by Bruce Cook — fig. a Bruce Cook, CC0 1.0 / 2022-05-21 / obs. 199474274

Viola rostrata, photographed by Lynn Harper — fig. b Lynn Harper, CC0 1.0 / obs. 197618457

Viola rostrata, photographed by David Eberly — fig. c David Eberly, CC0 1.0 / obs. 201831879

Viola rostrata, photographed by Trix Niernberger — fig. d Trix Niernberger, CC0 1.0 / obs. 199141841

Viola rostrata, photographed by Derek — fig. e Derek, CC BY 4.0 / obs. 200567111

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 = 1,557 observations

155

755

619

Flowering observations of Viola rostrata by month
Month	Observations
Jan	3
Feb	6
Mar	155
Apr	755
May	619
Jun	9
Jul	0
Aug	3
Sep	0
Oct	0
Nov	5
Dec	2

Peak flowering in Apr, from 1,557 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 5 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.

Lophion rostratum Nieuwl. & Kaczm.
Viola rostrata f. phelpsiae Fernald
Viola rostrata f. trirostrata Grover
Viola rostrata var. elongata Farw.
Viola rostrata var. phelpsiae (Fernald) Farw.

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
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.