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As a result of floristic investigations in the Valamara mountain range carried out between 2007 and 2016, 567 taxa belonging to 305 genera and 89 plant families were recorded, of which 307 taxa are reported as new for the area. A phytogeographical analysis showed that the Eurasian chorological type was the most dominant comprising 126 taxa (22.2% of the flora), the second was Balkan with 104 taxa (18.3%). There are 9 endemic and subendemic taxa. Epilobium alsinifolium, Dichoropetalum stridii and Taraxacum pindicum are new for the Albanian flora. Life-form analysis indicates that 56.8% of the species are hemicryptophytes; this high percentage points to the Mediterranean nature of the investigated area. A total of 119 species (20.9 %) are listed as deserving conservation status. Of these, 49 are in the Albanian Red List, 76 species in the IUCN Red List, two in the Habitats Directive, one included in Annex I of the Bern Convention and seven species in Appendix II of CITES. [ABSTRACT FROM AUTHOR]

In the present study, species were selected from the new Red List of the vascular flora of Hungary which can be regarded as a weed. For each species, current conservation status and the most important traits were assessed. Altogether 149 weed species were found to be at risk according to the International Union for Conservation of Nature (IUCN) categories: 11 species are extinct, 11 are critically endangered, 27 are endangered, 26 are vulnerable, 62 are near threatened and 12 are data deficient. These species belong to 37 plant families, from which the most important are Caryophyllaceae, Brassicaceae, Asteraceae, Scrophulariaceae, Chenopodiaceae, Poaceae and Fabaceae. The most significant chorological elements are Mediterranean (28%) and Eurasian (27%); endemic (Pannonian) taxa constitute only 5.4%. Over 90% of these species are of native or archaeophyte origin, according to their residence time. Considering the main habitat types, 46% of the species are originated from dry habitats, 23% from arable lands, 17.5% from wet habitats and 13.5% from ruderal habitats. In the life form spectra, a pronounced dominance of therophytes (81%) is represented. The factor that currently offers the greatest conflict to the conservation of endangered weed species in Hungary are side effects of strong eradication campaigns against the invasive Ambrosia artemisiifolia. [ABSTRACT FROM AUTHOR]