This pair from Poland’s Flora of Poland series showcases two elegant native species.
The 5 zł stamp depicts the Siberian Iris (Iris sibirica L.), known for its striking violet petals and graceful form, a beloved wetland flower in Europe.
The 4.50 zł value features Stag’s-horn Clubmoss (Lycopodium clavatum L.), a resilient evergreen plant of alpine and forest habitats.
Rendered in A. Heidrich’s precise botanical style, these stamps highlight Poland’s dedication to natural heritage and botanical illustration of the late 20th century.

Country: Poland
Year: 1970
Denominations: 5 zł, 4.50 zł
Designer: A. Heidrich
Printer: PWPW (Polska Wytwórnia Papierów Wartościowych)