Adiantum trapeziformeL.

diamond maidenhair

WFO wfo-0001112759 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Adiantum trapeziforme, photographed by Peter de Lange
fig. a Peter de Lange, CC0 1.0 / 2017-10-04 / obs. 11280573
Adiantum trapeziforme, photographed by Juan Cruzado Cortés
fig. b Juan Cruzado Cortés, CC BY-SA 4.0 / obs. 4198510
Adiantum trapeziforme, photographed by nick_goldwater
fig. c nick_goldwater, CC BY 4.0 / obs. 50099252
Adiantum trapeziforme, photographed by geralg
fig. d geralg, CC0 1.0 / obs. 113544767
Adiantum trapeziforme, photographed by Grete Pasch
fig. e Grete Pasch, CC BY 4.0 / obs. 105497994
Adiantum trapeziforme, photographed by Andre Hosper
fig. f Andre Hosper, CC BY 4.0 / obs. 32493778
Adiantum trapeziforme, photographed by Adrianh M. Orozco
fig. g Adrianh M. Orozco, CC BY 4.0 / obs. 12543796
Adiantum trapeziforme, photographed by Peter de Lange
fig. h Peter de Lange, CC0 1.0 / obs. 11148214

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 13 botanical countries

Regions where Adiantum trapeziforme is native: Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Belize, Costa Rica, Cuba, El Salvador, Guatemala, Honduras, Jamaica, Nicaragua Mexico CentralMexico GulfMexico NortheastMexico SoutheastMexico SouthwestBelizeCosta RicaCubaEl SalvadorGuatemalaHondurasJamaicaNicaragua
Native distribution of Adiantum trapeziforme, 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
Costa Rica COS
Cuba CUB
El Salvador ELS
Guatemala GUA
Honduras HON
Jamaica JAM
Nicaragua NIC
Mexico Central MXC NORTHERN AMERICA
Mexico Gulf MXG
Mexico Northeast MXE
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 9 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.

  • Adiantum cultratum J.Sm. ex Hook.
  • Adiantum eminens C.Presl
  • Adiantum formosissimum Klotzsch
  • Adiantum rhomboideum Schkuhr
  • Adiantum schmalzii Rosenst.
  • Adiantum trapeziforme var. catharinae Regel
  • Adiantum trapeziforme var. cultratum (J.Sm. ex Hook.) Hook. & Baker
  • Adiantum trapeziforme var. incisum Christ
  • Adiantum trapeziforme var. oblongatum T.Moore

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.
  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.