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Remnant population dynamics permit many plant species to persist timespans extending from decades up to several millenia. The regional-scalepersistence of these plant species strictly depends on the persistence of localpopulations within the region. This type of dynamics can explain the existenceof preglacial relict species in the Mediterranean today. We studied thepopulation dynamics of the long-lived iteroparous herb Ramondamyconi, a preglacial relict species with a fragmented distributioninMediterranean mountains, to evaluate the regional-scale persistence of thespecies. Demographic data were collected from 5 populations placed at LaCerdanya Pyrenean region for up to 6 years. The main life-history features ofthis species are the great longevity of adult plants and the high mortality ofseedlings. Matrix population models were used to investigate its demography.Overall, the population growth rate …