Digitalis purpurea nos selos

Alemanha

http://www.123rf.com/photo_15546863_gdr--circa-1960-a-stamp-printed-in-gdr-shows-purple-foxglove-digitalis-purpurea-medicinal-plant-circ.html

Romênia

http://colnect.com/pt/stamps/stamp/212850-Digitalis_purpurea-Flora_of_Romania-Rom%C3%A9nia

Bulgária

http://www.istockphoto.com/stock-photo-8017554-postage-stamp-foxglove-digitalis-purpurea-bulgaria.php

Estados Unidos

Tchecoslováquia

http://colnect.com/pt/stamps/stamp/130527-N%C3%A1prstn%C3%ADk_%C4%8Derven%C3%BD_Digitalis_purpurea-Medicinal_plants-Checoslov%C3%A1quia