Postage stamp commemorating Côte d'Ivoire's (Ivory Coast) 10th anniversary of independence. Côte d'Ivoire was the largest coffee producer in the 1970s and 1980s. The stamp features an illustration of a coffee bush as…

1958 stamp from Macau, which was a Portuguese overseas province in West Africa from 1588 until 1974. The stamp features a botanical illustration of Maytenus senegalensis. Maytenus senegalensis, also known as spike…

1971 Czechoslovakian postage stamp featuring the medicinal herb Valerian (Valeriana officinalis) alongside antique pharmacy mortars and pestles. Valerian is a plant that was used by the Greeks and Romans to treat…

1957 Yugoslavian postage stamp featuring an illustration of Valerian (Valeriana officinalis). Valerian is a plant that was used by the Greeks and Romans to treat insomnia, migraines, fatigue, and stomach cramps. Today,…

1967 Yugoslavian postage stamp featuring oleander (Nerium oleander). Oleander is a poisonous plant that contains cardiac glycosides.

1962 postage stamp from Poland featuring an illustration of a Snowdrop anemone (Anemonoides sylvestris). Snowdrops, also known as wood anemones, are considered an endangered species and are protected in Poland. This…

1957 postage stamp from Yugoslavia featuring an illustration of deadly nightshade (Atropa belladonna). Deadly Nightshade's alkaloids, such as atropine and scopolamine, are used in modern medicine to dilate pupils, treat…

1953 Bulgarian postage stamp featuring an illustration of deadly nightshade (Atropa belladonna). Deadly Nightshade's alkaloids, such as atropine and scopolamine, are used in modern medicine to dilate pupils, treat…

1974 postage stamp from Switzerland featuring an illustration of deadly nightshade (Atropa belladonna). Deadly Nightshade's alkaloids, such as atropine and scopolamine, are used in modern medicine to dilate pupils,…

1957 postage stamp from Yugoslavia, depicting the Scopolia carniolica plant. Scopolia carniolica is a highly toxic plant containing potent tropane alkaloids, primarily scopolamine and hyoscyamine. The plant is the…

1969 Bulgarian postage stamp featuring an illustration of deadly nightshade (Atropa belladonna). Deadly Nightshade's alkaloids, such as atropine and scopolamine, are used in modern medicine to dilate pupils, treat…

1965 postage stamp from Yugoslavia featuring an illustration of deadly nightshade (Atropa belladonna). Deadly Nightshade's alkaloids, such as atropine and scopolamine, are used in modern medicine to dilate pupils, treat…

1949, semi-postal stamp from Belgium featuring Periwinkle (Vinca). Periwinkle is known for producing alkaloids like vincristine and vinblastine. These compounds are potent anticancer agents used in chemotherapy for…