Asplenium obovatum Aspleniaceae Lanceolate Spleenwort

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Asplenium obovatum 58kb

Description - A fairly small fern with well-cut pinnules, although under optimum conditions fronds can reach 30cm. The outline of each frond is lanceolate, i.e. narrower at the bottom, in comparison with the similar and closely related Black Spleenwort Asplenium adantium-nigrum, where the frond is widest at the base. Lanceolate Spleenwort also has a characteristic curled look to the frond, especially when young.

Habitat - Grows in old, stone walls, and on hedgebanks, prefers acid conditions, and usually more shade than A. adiantum-nigrum.

Comments - Quite frequent in Guernsey, although a rare fern in Britain, occurring only in Cornwall, Devon, and north Wales. It hybridises with A. adiantum-nigrum to produce the Guernsey Spleenwort, A.x sarniense, and also with Hart's Tongue Fern Phyllitis scolopendrium to produce the Guernsey Fern, Asplenophyllitis x microdon.

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