Lomaridium fragile(Liebm.) Gasper & V.A.O.Dittrich

fragile midsorus fern

WFO wfo-0001346788 Accepted WFO 2026-06 5 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–e · 3 observations

This species has been photographed under an open licence only 3 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Lomaridium fragile, photographed by Marcos Rodriguez Bobadilla
fig. a Marcos Rodriguez Bobadilla, CC BY 4.0 / 2021-05-01 / obs. 196283466
Lomaridium fragile, photographed by Marcos Rodriguez Bobadilla
fig. b Marcos Rodriguez Bobadilla, CC BY 4.0 / obs. 196283499
Lomaridium fragile, photographed by Alan Weakley
fig. c Alan Weakley, CC0 1.0 / obs. 195318234
Lomaridium fragile, photographed by Marcos Rodriguez Bobadilla
fig. d Marcos Rodriguez Bobadilla, CC BY 4.0 / obs. 196283440
Lomaridium fragile, photographed by Lena Struwe
fig. e Lena Struwe, CC BY-SA 4.0 / obs. 7474380

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.

Native range 21 botanical countries

Regions where Lomaridium fragile is native: Mexico Central, Mexico Gulf, Mexico Southeast, Mexico Southwest, Belize, Bolivia, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Haiti, Honduras, Jamaica, Nicaragua, Panamá, Peru, Puerto Rico, Venezuela Mexico CentralMexico GulfMexico SoutheastMexico SouthwestBelizeBoliviaColombiaCosta RicaCubaDominican RepublicEcuadorEl SalvadorGuatemalaHaitiHondurasJamaicaNicaraguaPanamáPeruPuerto RicoVenezuela
Native distribution of Lomaridium fragile, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Belize BLZ SOUTHERN AMERICA
Bolivia BOL
Colombia CLM
Costa Rica COS
Cuba CUB
Dominican Republic DOM
Ecuador ECU
El Salvador ELS
Guatemala GUA
Haiti HAI
Honduras HON
Jamaica JAM
Nicaragua NIC
Panamá PAN
Peru PER
Puerto Rico PUE
Venezuela VEN
Mexico Central MXC NORTHERN AMERICA
Mexico Gulf MXG
Mexico Southeast MXT
Mexico Southwest MXS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 25 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 binervatum subsp. fragile (Liebm.) R.M.Tryon & Stolze
  • Blechnum feei C.Chr.
  • Blechnum fragile (Liebm.) C.V.Morton & Lellinger
  • Blechnum onocleoides Sw.
  • Blechnum polypodioides (Sw.) Kuhn
  • Blechnum polypodioides var. caudatum Hieron.
  • Lomaria decrescens Fée
  • Lomaria feei Jenman
  • Lomaria fragilis Liebm.
  • Lomaria mexicana Fée
  • Lomaria onocleoides Spreng.
  • Lomaria plumieri Fée
  • Lomaria polypoidiodes (Sw.) Desv.
  • Lonchitis feei Farw.
  • Lonchitis polypodioides (Sw.) Farw.
  • Lonchitis-aspera feei (Jenman) Farw.
  • Lonchitis-aspera polypodioides (Sw.) Farw.
  • Onoclea polypodioides (Sw.) Sw.
  • Osmunda polypodioides Sw.
  • Osmunda polypodioides subsp. fragilis (Liebm.) Nissen
  • Spicanta onocleoides C.Presl
  • Spicanta polypodioides (Sw.) Kuntze
  • Struthiopteris feei (Jenman) Ching
  • Struthiopteris polypodioides (Sw.) Trevis.

and 1 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. USDA PLANTS Database. common name, checklist symbol BLFR. public domain. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

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.