Occurrence of onerow yellowcress Nasturtium microphyllum (Boenn.) Rchb. in the Ilanka River (Lubusz Land)

The paper presents three new localities of Nasturtium microphyllum reported on the Ilanka River near Rzepin. In one of the localities onerow yellowcress specimens were in the flowering and fruiting stages, while in the two other localities plants were flowering, but they were not bearing fruits. Fruiting specimens were identifi ed on the basis of seed sculpture traits, while flowering plants – by flow cytometry, based on the genome size.