Arabidopsis kamchatica (Fisch. ex DC.) K. Shimizu & Kudoh and A. kamchatica subsp. kawasakiana (Makino) K. Shimizu & Kudoh, New Combinations

New combinations for two taxa, Arabidopsis kamchatica (Fisch. ex DC.) К. Shimizu & Kudoh and A. kamchatica subsp. kawasakiana (Makino) K. Shimizu & Kudoh, are proposed. The lectotypes of both names were chosen. We also provide a molecular evidence of allotetraploidy using a nuclear Chalcone Synthase (CHS) sequence.