Additional materials for the flora of the Ryazan city and the Ryazan region

Seventeen species were recorded for the flora of Ryazan city including five native species ( Bolboschoenus laticarpus , Brachypodium sylvaticum , Cardamine parviflora , Salix starkeana , Schoenoplectus lacustris ), and twelve alien species ( Avena sativa , Brassica juncea , Chenopodium betaceum , Digitaria aegyptiaca , Leymus arenarius , Lupinus albus , Petunia × hybrida , Rosa rubiginosa , Rumex patientia , Solidago × snarskisii , Symphyotrichum novae-angliae , S. novi-belgii ). Information is also provided on 12 rare alien species within the borders of Ryazan.