Pictorial guide to the flora of the British Isles

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Asplenium onopteris L.

Irish spleenwort (Aspleniaceae)

 SpreadBias within British IslesDirection of bias
LocalVery strong tendencySW
Plant Atlas 2020
BSBI Distribution Map

Asplenium onopteris is a very rare fern, restricted in the British Isles to sites scattered across southern Ireland; it is closely related to and can hybridise with Asplenium adiantum-nigrum, but has longer-attenuate pinnae and pinnules.

Morbihan (56), France; 2022-05-12

 Irish spleenwort / Asplenium onopteris: _Asplenium onopteris_ is a very rare fern, restricted in the British Isles to sites scattered across southern Ireland; it is closely related to and can hybridise with _Asplenium adiantum-nigrum_, but has longer-attenuate pinnae and pinnules.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne