Acta Scientiarum Polonorum
Silvarum Colendarum Ratio et Industria Lignaria

This paper presents the results of the inventory of the vascular plants of the “Goździk Siny w Grzybnie” reserve, with particular attention to the state of the Dianthus gratianopolitanus population. The flora (vascular plants) of the reserve comprises 105 species from 37 families, of which over 90% are native species. The anthropogenic transformations of the flora are manifested by a significant predominance of apophytes over spontaneophytes, the occurrence of ten alien species, including three invasive species (Prunus serotina, Impatiens parviflora, Robinia pseudoacacia), numerous individuals of invasive species, or a relative large participation of the related to human activities species, associated with three syntaxons – Plantaginetea Polygono-Chenopodietalia and Onopordion. From the legally protected species just Dianthus gratianopolitanus were found. In the reserve, it was found in three, small localities. Its population counts 95 individuals and is strongly endangered. The species has a tendency to give way.