A new record of Arabis recta Vill. (Brassicaceae) from Poland

Arabis recta Vill. is a therophyte currently considered to be endangered in Poland (EN category). The species has been reported from ca. 20 localities situated mainly in the Nida Basin (southeastern Poland). Arabis recta is usually a component of xero-thermophile grasslands, but it can also grow in arable fields or fallows. An abundant population of A. recta was found on slopes of the Góra Sosnówka hill (Małopolska Upland) in 2017. This newly discovered locality is currently the northernmost in Poland. The distribution of A. recta in Poland as well as collected phytosociological documentation are presented.