Supplementary Data

Files in this Data Supplement:

• Appendix S1 - Locality and voucher information of the individuals used in the study of the natural hybridization between Rosa blanda and R. rugosa in eastern North America.
• Appendix S2 - Alleles present in each individual for one chloroplast and four nuclear genes in the study of natural hybridization between Rosa rugosa and R. blanda in North America.
• Appendix S3 - Box-and-whisker plots showing the distribution prior to transformation of 22 morphological characters and maximum pollen stainability for the parents and F1 categories in the study of natural hybridization between Rosa blanda and R. rugosa.