Erythranthe lewisii(Pursh) G.L.Nesom & N.S.Fraga

Lewis' monkeyflower

WFO wfo-0001333247 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Erythranthe lewisii, photographed by Jared Shorma
fig. a Jared Shorma, CC BY 4.0 / 2021-08-28 / obs. 158764579
Erythranthe lewisii, photographed by Randal
fig. b Randal, CC0 1.0 / obs. 153700945
Erythranthe lewisii, photographed by Ben Meredyk
fig. c Ben Meredyk, CC BY 4.0 / obs. 153836365
Erythranthe lewisii, photographed by Jared Shorma
fig. d Jared Shorma, CC BY 4.0 / obs. 160247829
Erythranthe lewisii, photographed by Randal
fig. e Randal, CC0 1.0 / obs. 149729193
Erythranthe lewisii, photographed by Dan Harville
fig. f Dan Harville, CC BY-SA 4.0 / obs. 150373805
Erythranthe lewisii, photographed by John Brew
fig. g John Brew, CC BY 4.0 / obs. 152813957
Erythranthe lewisii, photographed by John Brew
fig. h John Brew, CC BY 4.0 / obs. 151191244

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 = 2,100 observations

Peak flowering in Aug, from 2,100 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 9 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.

  • Mimulus lewisii Pursh
  • Mimulus lewisii f. albus (J.K.Henry) B.Boivin
  • Mimulus lewisii f. leuceruthrus Hardin
  • Mimulus lewisii f. tetonensis (A.Nelson) J.F.Macbr. & Payson
  • Mimulus lewisii var. albus J.K.Henry
  • Mimulus lewisii var. exsertus J.M.Coult. & Fisher
  • Mimulus lewisii var. tetonensis A.Nelson
  • Mimulus roseus Douglas ex Lindl.
  • Mimulus roseus var. glabrior Hook.

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.