A striking airmail stamp from Paraguay showcasing the Flor de Guembe Tayá (Philodendron rubuston), printed in vivid orange and green tones. Issued as part of the Centenario de la Epopeya Nacional 1864–1870, it commemorates the nation’s historical legacy following the War of the Triple Alliance. The detailed botanical illustration is beautifully rendered and typical of Paraguay’s mid-century engraved issues. The 50₲ denomination appears in a bold blue-white panel, marked as “Adicional Pro-Monumento al Mcal. López.” An excellent thematic piece for collectors of Latin American flora, airmail issues, and commemorative designs.