asplenium trichomanes

A good example of this is the currently designated species Asplenium trichomanes, the maidenhair spleenwort.

Asplenium trichomanes.

This feature easily distinguishes this species from the very similar-looking maidenhair spleenwort, Asplenium trichomanes.

Asplenium trichomanes has diploid, tetraploid and hexaploid cytotypes, which it has been argued should be recognised as distinct species.

Asplenium trichomanes (commonly known as maidenhair spleenwort) is a small fern in the spleenwort genus Asplenium.

On walls with a more lime-rich mortar the Asplenium trichomanes - Asplenium ruta-muraria community (OV39) can replace it.

Other plants that are largely confined to northern limestone areas include butterwort, Pinguicula vulgaris, maidenhair spleenwort, Asplenium trichomanes, and grass of Parnassus, Parnassia palustris.

British NVC community OV39 (Asplenium trichomanes - Asplenium ruta-muraria community) is one of the open habitat communities in the British National Vegetation Classification system.

Under the rules of the International Code of Botanical Nomenclature, phrase names such as "Asplenium Trichomanes ramosum" are to be treated as orthographic errors - in this case, for "Asplenium ramosum".

Over two hundred plants of the nationally rare fern, Lobed Maidenhair Spleenwort (Asplenium trichomanes subsp pachyrachis), were discovered in 1997, growing on calcareous sandstone at two different locations; this is possibly the largest population of the subspecies in Britain.

The shallow soils that have developed on ledges and crevices in the limestone and on the scree slopes support a vegetation in which ferns such as maidenhair spleenwort, Asplenium trichomanes, green spleenwort, A. viride, and brittle bladder fern, Cystopteris fragilis, are prominent.