Nature Stamp Thematic on WOPA+
Nature
| European Nature Protection |
| Issued: 24.03.2026 |
| ›Serbia |
| International Day of Forests - (3 Offices) |
| Issued: 21.03.2026 |
| ›United Nations |
| International Day of Forests - (New York) |
| Issued: 21.03.2026 |
| ›United Nations |
| International Day of Forests - (Geneva) |
| Issued: 21.03.2026 |
| ›United Nations |
| International Day of Forests - (Vienna) |
| Issued: 21.03.2026 |
| ›United Nations |
| Chicory - Cichorium Intybus L. |
| Issued: 18.03.2026 |
| ›Serbia |
| Definitive Stamp - Walnut |
| Issued: 18.03.2026 |
| ›Serbia |
| Definitive Stamp - Poppy |
| Issued: 18.03.2026 |
| ›Serbia |
| Flora |
| Issued: 18.03.2026 |
| ›Montenegro |
| 125 Years of Organized Mountaineering in Serbia |
| Issued: 17.03.2026 |
| ›Serbia |
| Northern Lapwing |
| Issued: 14.03.2026 |
| ›Austria |
| Natural Patterns |
| Issued: 05.03.2026 |
| ›Switzerland |
| Jersey's Pollinators - Bees |
| Issued: 26.02.2026 |
| ›Jersey |
| Greenlandic Plants - Part II |
| Issued: 16.02.2026 |
| ›Greenland |
| Nature Reserve |
| Issued: 12.02.2026 |
| ›Israel |
| Alderney Bird Observatory |
| Issued: 11.02.2026 |
| ›Alderney |
| Bonaire - Birds of the Island |
| Issued: 10.02.2026 |
| ›Caribbean Netherlands |
| Saba - Birds of the Island |
| Issued: 10.02.2026 |
| ›Caribbean Netherlands |
| St. Eustatius - Birds of the Island |
| Issued: 10.02.2026 |
| ›Caribbean Netherlands |
| Birds |
| Issued: 10.02.2026 |
| ›Sint Maarten |
| Franking Labels - Trees |
| Issued: 04.02.2026 |
| ›Aland Islands |
| Rose (reprint) |
| Issued: 02.02.2026 |
| ›Latvia |
| Wetland Ecosystem |
| Issued: 02.02.2026 |
| ›Lithuania |