Natural hybridization and introgression between the Long-Spurred orchid, <i>Orchis longicornu</i> Poiret and the Green-Winged orchid, <i>O. morio</i> L. (Orchidaceae) in Corsica

Genetic studies have revealed in Southern Corsica, near Bonifacio, not only the existence of sporadic F1 hybrids between Orchis longicornu Poiret and O. morio L., but of a hybrid zone where both parental taxa are more or less introgressed. Our data indicate complete interfertility between the two taxa, which should therefore be considered as subspecies of the same biological species