Weissia controversaHedw.

Controversial Weissia Mosscontroverial weissia mossgreen-tufted stubble-moss

WFO wfo-0001161677 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Weissia controversa, photographed by Helen Waterman
fig. a Helen Waterman, CC BY 4.0 / 2022-03-25 / obs. 185373415
Weissia controversa, photographed by Randal
fig. b Randal, CC0 1.0 / obs. 183613987
Weissia controversa, photographed by Randal
fig. c Randal, CC0 1.0 / obs. 183153172
Weissia controversa, photographed by Christian Berg
fig. d Christian Berg, CC BY 4.0 / obs. 176141480
Weissia controversa, photographed by Andrew Thornhill
fig. e Andrew Thornhill, CC BY 4.0 / obs. 156629158
Weissia controversa, photographed by T. Hammer
fig. f T. Hammer, CC BY 4.0 / obs. 156870203
Weissia controversa, photographed by Em Lamond
fig. g Em Lamond, CC BY 4.0 / obs. 154299374
Weissia controversa, photographed by Andrew Thornhill
fig. h Andrew Thornhill, CC BY 4.0 / obs. 144253369

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.

Also published as 170 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.

  • Bryum controversum (Hedw.) P.Beauv.
  • Bryum micro-odontum (Hedw.) P.Beauv.
  • Bryum microdontum (Hedw.) P.Beauv.
  • Bryum virens Dicks.
  • Bryum viridulum With.
  • Dicranoweisia pumecicola Sakurai
  • Dicranoweisia riparia (Hampe) Paris
  • Dicranum xanthodon Hedw.
  • Dicranum xanthodon var. majus Hampe
  • Dicranum xanthodon var. minus Hampe
  • Grimmia controversa (Hedw.) F.Weber & D.Mohr
  • Grimmia crispa Roth ex G.Gaertn., B.Mey. & Schreb.
  • Grimmia micro-odonta (Hedw.) F.Weber & D.Mohr
  • Gymnostomum cirrhatum De Not.
  • Gymnostomum crispatum (Nees & Hornsch.) Schimp.
  • Gymnostomum micaceum Schltdl.
  • Gymnostomum oranicum (Müll.Hal.) Rehmann ex Paris
  • Gymnostomum pabstianum (Müll.Hal.) A.Jaeger
  • Gymnostomum rauanum Austin
  • Gymnostomum schimperi Molendo
  • Gymnostomum tortile var. alpinum Schimp.
  • Gymnostomum tortile var. subcylindricum (Bruch & Schimp.) Schimp.
  • Hymenostomum crispatum Nees & Hornsch.
  • Hymenostomum mexicanum Cardot

and 146 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.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite. It has no native range either: Kew's checklist does not cover this taxon.