Cicerbita muralis(L.) Wallr.

Wall Lettuce

WFO wfo-0000063326 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Cicerbita muralis, photographed by Alexis Tinker-Tsavalas
fig. a Alexis Tinker-Tsavalas, CC BY 4.0 / 2022-06-04 / obs. 203423298
Cicerbita muralis, photographed by Alexis Tinker-Tsavalas
fig. b Alexis Tinker-Tsavalas, CC BY 4.0 / obs. 203424998
Cicerbita muralis, photographed by SK53
fig. c SK53, CC BY-SA 4.0 / obs. 204836867
Cicerbita muralis, photographed by Pete Bradshaw
fig. d Pete Bradshaw, CC BY 4.0 / obs. 204825979
Cicerbita muralis, photographed by Марина Садыкова
fig. e Марина Садыкова, CC BY 4.0 / obs. 203247941
Cicerbita muralis, photographed by Bryn
fig. f Bryn, CC BY 4.0 / obs. 205964322
Cicerbita muralis, photographed by Liubov Ilminska
fig. g Liubov Ilminska, CC0 1.0 / obs. 204048795
Cicerbita muralis, photographed by Jens-Christian Svenning
fig. h Jens-Christian Svenning, CC BY 4.0 / obs. 203965074

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 = 2,237 observations

Peak flowering in Jul, from 2,237 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 14 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.

  • Chondrilla erysimifolia (Willd.) Poir.
  • Chondrilla muralis (L.) Lam.
  • Chondrilla ruderalis Gaertn. ex Steud.
  • Lactuca erysimifolia (Willd.) DC.
  • Lactuca muralis (L.) G.Mey.
  • Lactuca muralis (L.) Gaertn.
  • Lapsana erysimifolia (Willd.) Thell.
  • Mycelis angulosa Cass.
  • Mycelis muralis (L.) Dumort.
  • Phaenixopus muralis (L.) W.D.J.Koch
  • Phaenopus muralis (L.) Coss. & Germ.
  • Prenanthes erysimifolia Willd.
  • Prenanthes muralis L.
  • Prenanthes parviflora Gilib.

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.