Nálezy zajímavých a nových druhů v květeně jižní části Čech XXVIII.

This paper presents the first record of the occurrence of Pilosella ×iserana, a new taxon for South Bohemia. New localities of rare native or rare alien taxa and threatened or otherwise important taxa of the South Bohemian flora are reported and described: Aphanes arvensis, Cardamine chelidonia, Crepis foetida subsp. rhoeadifolia, Corydalis solida, Dianthus superbus, Diphasiastrum ×zeilleri, Equisetum hyemale, Hibiscus trionum, Hieracium levicaule, Nicandra physalodes, Ornithopus perpusillus, Pilosella floribunda, Polystichum aculeatum, Potamogeton nodosus, Rubus capricollensis, Silene baccifera, Veronica vindobonensis and Vulpia myuros. For some of the above species, regional distribution or known localities are only updated or supplemented here. [ABSTRACT FROM AUTHOR]