1 Ruble Iris pontica

Transnistria — officially unrecognized by any UN member state — has operated its own central bank and issued its own currency since declaring independence from Moldova in 1990, a separation enforced by Russian military presence and a brief but bloody armed conflict in 1992. The Pridnestrovian Republican Bank has used its coinage program aggressively as a soft sovereignty tool, issuing collectible rubles on subjects ranging from regional flora to Orthodox monasteries, sold primarily to collectors rather than circulated.

Iris pontica is a rare wild iris native to the Black Sea steppe — its inclusion suggests a broader botanical series drawing on the region's ecology.