The fourth part of the series about the distribution of Pilosella summarizes records from the phytogeographical district of Východní Polabí.
A total of 15 taxa were found, of which six were basic species, including P. aurantiaca, P. bauhini, P. caespitosa, P. lactucella, P. officinarum and P. piloselloides, and nine were hybridogenous species, including P. brachiata, P. densiflora, P. flagellaris, P. floribunda, P. glomerata, P. iserana, P. macranthela, P. scandinavica and P. schultesii. The records of Pilosella iserana, P. macranthela, P. scandinavica and P. schultesii are new to this phytogeographical distric.