Icarus filiformis(A.Cunn.) Gasper & Salino

Thread Fern

WFO wfo-0001346777 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Icarus filiformis, photographed by Tony Wills
fig. a Tony Wills, CC BY-SA 4.0 / 2022-05-02 / obs. 194656537
Icarus filiformis, photographed by Mike Bowie
fig. b Mike Bowie, CC BY 4.0 / obs. 205689956
Icarus filiformis, photographed by Jaco Grundling
fig. c Jaco Grundling, CC0 1.0 / obs. 192120594
Icarus filiformis, photographed by Joe Dillon
fig. d Joe Dillon, CC BY 4.0 / obs. 192603606
Icarus filiformis, photographed by Leon Perrie
fig. e Leon Perrie, CC BY 4.0 / obs. 188210848
Icarus filiformis, photographed by Saryu Mae 前 朝琉
fig. f Saryu Mae 前 朝琉, CC BY 4.0 / obs. 177886457
Icarus filiformis, photographed by M Rutherford
fig. g M Rutherford, CC BY 4.0 / obs. 179801229
Icarus filiformis, photographed by Joe Dillon
fig. h Joe Dillon, CC BY 4.0 / obs. 183673932

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.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

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.

  • Blechnum filiforme (A.Cunn.) Ettingsh.
  • Blechnum reptans Luerss.
  • Lomaria filiformis A.Cunn.
  • Lomaria pimpinellifolia Hook.f.
  • Lomaria propinqua A.Cunn.
  • Lomariopsis heteromorpha T.Moore
  • Lomariopsis hugelii (Fée) C.Presl
  • Lomariopsis sorbifolia var. resecta Christ
  • Osmunda reptans Banks & Sol.; Forst.
  • Spicanta filiformis (A.Cunn.) Kuntze
  • Stenochlaena feejeensis Brack.
  • Stenochlaena heteromorpha J.Sm.
  • Stenochlaena huegelii (C.Presl) J.Underw.
  • Struthiopteris filiformis (A.Cunn.) Ching

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.