Carex mackenziei and C. canescens × mackenziei in the Åland Islands, SW Finland

Authors

• Ralf Carlsson Ålands lyceum
• Mikael von Numers Åbo Akademi University
• Carl-Adam Hæggström University of Helsinki

Abstract

The northern amphi-atlantic seashore sedge Carex mackenziei V. I. Krecz. was found by us in four localities in 2008–2011, two in Kökar and one in Brändö in the eastern archipelago and one in Sund on the mainland of Åland. The hybrid C. canescens L. × mackenziei (C. × pseudohelvola Kihlm.), which occurs regularly together with C. mackenziei, was found in Sund in 2010 and 2011. The general distribution of the two taxa is outlined. The previous finds of C. mackenziei and the hybrid in the Åland Islands during the 19th and 20th centuries are referred to. The future of Carex mackenziei and its hybrid in the Åland Islands is discussed.