Records of interesting and new plants in the South Bohemian flora XVIII.
Veronica vindobonensis has been found as a new native species for South Bohemia. New localities of rare native or rare alien taxa of the South Bohemian flora are reported and described: Aphanes australis, Bromus japonicus, Diplotaxis tenuifolia, Dryopteris cristata, Epipactis atrorubens, Fumaria vaillantii, Lepidium heterophyllum, Malaxis monophyllos, Orobanche purpurea subsp. purpurea, Rosa gallica, Setaria verticillata, Thelypteris palustris and Vicia dalmatica. World distribution and distribution in the Czech Republic and detailed distribution in South Bohemia are presented, and remarks on ecology are added.