Association SAA01

Cystopteridetum fragilis Oberdorfer 1938

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This is a calcicolous and slightly nitrophilous vegetation type of shaded sites, dominated by Cystopteris fragilis. This species, however, is not confined to calcareous substrata; it can also grow in other associations of Asplenietea trichomanis on acidic rock outcrops. Along with other small ferns, species of nutrient-rich forests are common. The more species-rich stands of this community are found on natural rock outcrops, where some rare relict species can be found. More common, yet species-poorer, are stands on walls and in other human-made habitats such as quarries.

Citation: Sádlo J. & Chytrý M. (2009): Cystopteridetum fragilis Oberdorfer 1938. – In: Chytrý M. (ed.), Vegetace České republiky. 2. Ruderální, plevelová, skalní a suťová vegetace [Vegetation of the Czech Republic 2. Ruderal, weed, rock and scree vegetation], p. 411–414, Academia, Praha.
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