Tortula acaulon(With.) R.H.Zander

cuspidate earth-mosstoothed phascum moss

WFO wfo-0001198835 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Tortula acaulon, photographed by Randal
fig. a Randal, CC0 1.0 / 2022-05-23 / obs. 200965673
Tortula acaulon, photographed by Braden J. Judson
fig. b Braden J. Judson, CC0 1.0 / obs. 202012540
Tortula acaulon, photographed by Eva-Maria
fig. c Eva-Maria, CC BY-SA 4.0 / obs. 176588597
Tortula acaulon, photographed by carnifex
fig. d carnifex, CC BY 4.0 / obs. 174249180
Tortula acaulon, photographed by Zoltán Nagy
fig. e Zoltán Nagy, CC BY 4.0 / obs. 181530454
Tortula acaulon, photographed by George Greiff
fig. f George Greiff, CC BY 4.0 / obs. 109376394
Tortula acaulon, photographed by George Greiff
fig. g George Greiff, CC BY 4.0 / obs. 108241854
Tortula acaulon, photographed by George Greiff
fig. h George Greiff, CC BY 4.0 / obs. 58153558

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 93 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.

  • Astomum crispum var. polycarpum (Bruch & Schimp.) Hampe
  • Astomum cuspidatum (Schreb. ex Hedw.) Bayrh.
  • Astomum cuspidatum var. affine (Nees & Hornsch.) Bayrh.
  • Astomum cuspidatum var. curvisetum (Dicks.) Bayrh.
  • Astomum cuspidatum var. elatum (Brid.) Bayrh.
  • Astomum cuspidatum var. piliferum (Schreb. ex Hedw.) Bayrh.
  • Astomum cuspidatum var. schreberianum (Dicks.) Bayrh.
  • Astomum multicapsulare (Sm.) Bruch & Schimp.
  • Astomum polycarpum (Bruch & Schimp.) Hampe ex Müll.Hal.
  • Microbryum floerkeanum var. henrici Renauld & Cardot
  • Mollia multicapsularis (Sm.) Braithw.
  • Phascum acaulon With.
  • Phascum acaulon subsp. papillosum (Lindb.) Lindb.
  • Phascum acaulon subsp. piliferum (Schreb. ex Hedw.) Kindb.
  • Phascum acaulon var. curvisetum (Dicks.) Brockm.
  • Phascum acaulon var. diaphorum I.Hagen
  • Phascum acaulon var. elatum (Brid.) Mönk.
  • Phascum acaulon var. elongatum (Fiedl.) Brockm.
  • Phascum acaulon var. macrophyllum (Wibel ex Roem.) Broth.
  • Phascum acaulon var. mitriforme (Limpr.) Levier
  • Phascum acaulon var. papillosum (Lindb.) Mönk.
  • Phascum acaulon var. piliferum (Schreb. ex Hedw.) Brockm.
  • Phascum acaulon var. schreberi Braithw.
  • Phascum acaulon var. schreberianum (Dicks.) Jansen & Wacht.

and 69 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.