Supplementary material 1 Hybridization of Oxalis corniculata and O. dillenii in their non-native range Instituut voor Landbouw-, Visserij- en Voedingsonderzoek
Leen Leus, Sofie Meeus, Steven B. Janssens, Quintin Groom, Ivan Hoste
Many species have been introduced beyond their native ranges and many have become global weeds. Human mediated dispersal has removed the geographic isolation of these species, reversing millions of years of independent evolution. Examples are the Oxalis species in section Corniculatae where several species have become invasive. Here we characterize and formally describe a hybrid between O. dillenii and O. corniculata, which occurs spontaneously in Belgium and Japan. Oxalis corniculata is probably native to Japan, but both species are alien to Belgium and O. dillenii is native to North ...