Invasion genetics of the Bermuda buttercup (Oxalis pes-caprae): Complex intercontinental patterns of genetic diversity, polyploidy and heterostyly characterize both native and introduced populations

1. Ferrero, V.
2. Barrett, S.C.H.
3. Castro, S.
4. Caldeirinha, P.
5. Navarro, L.
6. Loureiro, J.
7. Rodríguez-Echeverría, S.