Rupicolous chamaephytic and hemicryptophytic vegetation of rock shelves, broad crevices and gravel slopes of the Iberian Peninsula and Western Maghreb
Phagnalo saxatilis-Rumicetea indurati (Rivas Goday et Esteve 1972) Rivas-Mart. et al. 1973
Phagnalo saxatilis-Rumicetea indurati (Rivas Goday et Esteve 1972) Rivas-Mart. et al. 1973
pha01 | The syntaxonomic position of this class is contentious because it was considered as a part of the Asplenietea trichomanis by some authors. The character species of the latter class are, however, rare in these communities, whereas the local and regional (Iberian) endemics are prevalent. At this stage this class can be considered a geographic analogue to the Drypidetea spinosi, but the syntaxonomic make-up of the Phagnalo-Rumicetea is highly heterogeneous (including communities of rock fissures, screes and alluvial beds on silicicolous, ultramafic and calcareous substrates) and therefore there is a need for revision of this class and explanation of the nature of the major ecological and evolutionary drivers shaping its ecology and species composition. (L. Mucina).