Vegetation of the Landfill Supíkovice (Olomouc Region, Czech Republic)

The paper presents the results of floristic and vegetation analyses of the landfill Supíkovice. Ruderal, segetal and meadow vegetation units were recorded in June 2015. The most interesting findings were threatened weed species growing in decontamination patches on loamy and nutrient-poor soils in the central part of the landfill. Dianthus armeria (C4a) and Filago arvensis (C3) are listed in the national Red List of the Czech Republic. Moreover, these taxa were evaluated in the same category of rarity on the regional level. Apart from the above mentioned, Centaurea cyanus (C4a) and Papaver dubium (C4a), registered only in the regional Red List of vascular plants of the Moravian-Silesian Region (see methods), were found. Besides threatened species, relatively small populations of invasive taxa as Erigeron annuus, Impatiens parviflora or Reynoutria sp., were also recorded on the landfill Supíkovice.