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The paper publishes the first records of the occurrence of a native species Sonchus palustris and three alien species Eryngium giganteum, Inula ensifolia and Medicago orbicularis in 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: Carex otrubae, Ceratophyllum submersum, Cynodon dactylon, Dipsacus laciniatus, Erysimum cheiri, Erucastrum gallicum, Geranium macrorrhizum, Hieracium bifidum, Lathyrus nissolia subsp. pubescens, Rubus centrobohemicus, Sisymbrium orientale subsp. orientale, Sorghum bicolor, Thelypteris palustris and Trifolium fragiferum. For some of the species mentioned above, regional distribution or known localities are only updated or supplemented here. Particularly, the record of Verbena offi- cinalis near the village of Ratiborova Lhota in the Chvalšinské Předšumaví phytogeographical district was found to be wrong. [ABSTRACT FROM AUTHOR]

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]

The paper publishes the first record of the occurrence of Vallisneria spiralis, a new alien 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: Allium senescens subsp. montanum, Anacamptis morio, Aphanes arvensis, Cephalanthera longifolia, Crepis praemorsa, Dianthus superbus, Diphasiastrum xissleri, Eleocharis uniglumis subsp. uniglumis, Gagea villosa, Galeopsis pernhofferi, Hieracium bifidum, Hydrocotyle vulgaris, Hypericum hirsutum, Lathyrus linifolius, Leucojum vernum, Luzula divulgata, Meum athamanticum, Montia fontana subsp. amporitana, Petrorhagia saxifraga, Pilosella lactucella, P. macranthela, P. piloselloides, P. schultesii, Rosa gallica, Rubus passaviensis, Salvia hispanica, Triglochin palustris, Valerianella carinata, Viola stagnina and Viscum album subsp. abietis. Regional distribution or known localities of some of the above species are updated or supplemented here. [ABSTRACT FROM AUTHOR]