Appearance''Anogramma leptophylla'' is a small annual fern, seldom exceeding 3 in in height. It has delicate, two-pinnate fronds, only the inner ones being fertile and bearing linear spore cases on the undersides of the nearly circular leaflets, occupying most of their surface area. The leaf margins are not curled.
Distribution''Anogramma leptophylla'' has an oceanic temperate distribution. It is found in the Mediterranean area and is widespread in North America. The only place in the British Isles in which it occurs is the island of Jersey in the Channel Islands.
HabitatIt grows on walls and banks, especially when there is underlying granite rock. It prefers to grow on bare soil in moist but well-drained locations as it is not very competitive. Other plants growing in the same habitats include the pellitory-of-the-wall ''Parietaria lusitanica'' and the Mediterranean clubmoss in northern Italy, and the clubmoss, the liverwort ''Targionia hypophylla'' and the mosses ''Rhynchostegiella tenella'' and ''Timmiella anomala'' in Elba.
These plants are all heat-loving and are able to survive the winter by growing in locations where warm water seeps out of crevices, giving a tropical microclimate.
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