Et ceterach…

Asplenium ceterach L., 1753

Common names

  • 🇬🇧 Rustyback fern
  • 🇫🇷 Doradille cétérac, Cétérac officinal, Cétérac, Cétérach

Taxonomy

  • Kingdom: Plantae
  • Clade: Tracheophytes
  • Clade: Monilophytes
  • Class: Polypodiopsida
  • Subclass: Polypodiidae
  • Order: Polypodiales
  • Suborder: Aspleniineae
  • Family: Aspleniaceae
  • Genus: Asplenium
  • Species: Asplenium ceterach

Presence

Present.

Conservation status

  • Red List (Metropolitan France): LC Least Concern
  • Red List (Europe): LC Least Concern

Notes

The following infraspecific taxa are accepted:

  • A. ceterach subsp. bivalens (D.E.Mey.) Greuter & Burdet, 1980: het. syn. A. javorkeanum Vida, 1963, diploid (2n = 72);
  • A. ceterach subsp. ceterach L., 1753: autotetraploid (2n = 144), P;
  • A. ceterach nothosubsp. mantoniae (Váróczy & Vida) Jermy, 1987: subsp. bivalens × subsp. ceterach, triploid (2n = 108), P;
  • A. ceterach subsp. mediterraneum Pinter, 2002: het. syn. A. ceterach subsp. cyprium (Viane & Van den Heede) Viane, 2002, autohexaploid (2n = 216);
  • A. ceterach nothosubsp. troodeum (Viane & Van den Heede) Viane, 2002: subsp. ceterach × subsp. mediterraneum, pentaploid (2n = 180).

Hybridizes with A. sagittatum (DC.) Bange, 1952 to produce A. × dutartrei Berthet, 1981: subsp. ceterach, probably triploid (2n = 108), P.

Photographs

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Asplenium ceterach
img/asplenium-ceterach-2.webp
Asplenium ceterach
img/asplenium-ceterach-3.webp
Asplenium ceterach
img/asplenium-ceterach-4.webp
Asplenium ceterach - Individual growing together with Asplenium ruta-muraria L., 1753

Sources

  • Badré, F., & Deschatres, R. (1979). Les Ptéridophytes de la France : liste commentée des espèces (taxinomie, cytologie, écologie et répartition générale). Candollea, 34(2), 379-457. https://doi.org/10.5169/seals-880127

  • Berthet, P. (1981). Un nouvel hybride d’Asplenium : A. dutartrei (Fougères). Bulletin Mensuel de La Société Linnéenne de Lyon, 50(8), 250-253. https://doi.org/10.3406/linly.1981.10505

  • Christenhusz, M., Bento Elias, R., Dyer, R., Ivanenko, Y., Rouhan, G., Rumsey, F., & Väre, H. (2017). Asplenium ceterach (Europe assessment). The IUCN Red List of Threatened Species, 2017. https://www.iucnredlist.org/species/83470465/83470575

  • Kummer, V., Viane, R., Van den Heede, C., Welk, E., Fuchs, J., Scheffel, A., & Bennert, A.H. (2026). The Asplenium ceterach complex (Aspleniaceae, Polypodiopsida) on Rhodes and Chalki (Greece) - with an overview of its Euro-Mediterranean range. Nova Hedwigia, 122(1-2), 211-236. https://doi.org/10.1127/nova_hedwigia/2025/1143

  • Prelli, R., & Boudrie, M. (2024). Les fougères et plantes alliées d’Europe (2nd ed., p. 256). Biotope.

  • Tison, J.M., & de Foucault, B. (2014). Flora Gallica : Flore de France (p. 5). Biotope.