Epilobium ciliatumRaf.

fringed willowherb

WFO wfo-0000668926 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Epilobium ciliatum, photographed by Vasily Reinkymov
fig. a Vasily Reinkymov, CC0 1.0 / 2022-06-12 / obs. 205592302
Epilobium ciliatum, photographed by Braden J. Judson
fig. b Braden J. Judson, CC0 1.0 / obs. 192688423
Epilobium ciliatum, photographed by Braden J. Judson
fig. c Braden J. Judson, CC0 1.0 / obs. 191983576
Epilobium ciliatum, photographed by Drew Meyer
fig. d Drew Meyer, CC0 1.0 / obs. 176032124
Epilobium ciliatum, photographed by Jenny Saito
fig. e Jenny Saito, CC BY 4.0 / obs. 185019441
Epilobium ciliatum, photographed by Jenny Saito
fig. f Jenny Saito, CC BY 4.0 / obs. 175120126
Epilobium ciliatum, photographed by Doug Miller
fig. g Doug Miller, CC BY 4.0 / obs. 168194577
Epilobium ciliatum, photographed by Jenny Saito
fig. h Jenny Saito, CC BY 4.0 / obs. 180875928

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 = 2,660 observations

Peak flowering in Jul, from 2,660 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 109 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.

  • Chamaenerion dominii Nábělek
  • Epilobium aconcaguinum Phil.
  • Epilobium adenocaulon Hausskn.
  • Epilobium adenocaulon f. albiflorum F.G.Bernard
  • Epilobium adenocaulon f. apricum Hausskn.
  • Epilobium adenocaulon f. umbrosum Hausskn.
  • Epilobium adenocaulon subsp. americanum (Hausskn.) Á.Löve & D.Löve
  • Epilobium adenocaulon var. americanum (Hausskn.) Á.Löve & D.Löve
  • Epilobium adenocaulon var. cinerascens (Piper) M.Peck
  • Epilobium adenocaulon var. ecomosum (Fassett) Munz
  • Epilobium adenocaulon var. holosericeum (Trel.) Munz
  • Epilobium adenocaulon var. occidentale Trel.
  • Epilobium adenocaulon var. parishii (Trel.) Munz
  • Epilobium adenocaulon var. perplexans Trel.
  • Epilobium adenocaulon var. pseudocoloratum Lunell
  • Epilobium affine Bong.
  • Epilobium alaskae H.Lév.
  • Epilobium albiflorum Phil.
  • Epilobium americanum Hausskn.
  • Epilobium argentium Sam.
  • Epilobium bergianum A.K.Skvortsov
  • Epilobium bifarium Kom.
  • Epilobium boreale Hausskn.
  • Epilobium brevistylum Barbey

and 85 more.

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.