Anthoxanthum aristatum Boiss. ekspansywny gatunek Wysoczyzny Kałuszyńskiej [Anthoxanthum aristatum Boiss. an expansive species of the Kałuszyńska Upland]

Abstract

Expansive character of Anthoxanthum aristatum Boiss. in agricultural crops and stubble fields of the Kałuszyńska Upland is presented in the paper. Analysis of occurrence of the species was made according to floristic lists and 802 phytosociological records made between the 1980 and 2002 in rye and poor cereal-fodder soil complexes. In the first period of studies ( 1980-1985) Anthoxanthum aristatum was hardly known from 6 localities and was included in the group of rare species. Between 1994 and 2002 occurrence of the species in the whole studied area (61 localities) was recorded. The weed infested rye canopy in great quantities and overgrown stubble fields on the poorest sandy soils. It was also noted on the most fertile habitats in spring cereals and potato canopy.