Foxglove — heart signature
bell flower and cardiac lore
Foxglove is shown here as a later signature example whose bell-shaped flowers and known cardiac history became linked in popular accounts. The heart point is a target-organ projection rather than a claim that flower shape established a safe dose, diagnosis, or treatment.
Point 3 of 6 in Doctrine of Signatures
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Paracelsus, Paragranum (primary)
Paragranum discusses the signatura as a way of reading the hidden virtue of natural things; see Book IV, the discussion of signatures and external signs.
Roy Porter, The Greatest Benefit to Mankind: A Medical History of Humanity (scholarly_modern)
Historical account of early-modern European medicine and Paracelsian natural philosophy; see the chapters on Renaissance medicine and Paracelsianism.