Any plant believed to have healing properties related to hammer blows or wounds, or a plant with hammer-shaped leaves or flowers.
From hammer + wort (Old English wyrt, meaning 'plant' or 'herb'). The -wort suffix was commonly attached to plants in medieval herbalism, often based on appearance or perceived magical properties.
In medieval folk medicine, plants were named after what they looked like or what they supposedly cured—'hammerwort' likely referred to plants with striking hammer-shaped seed pods or leaves, following the 'doctrine of signatures' belief that a plant's shape hinted at its healing powers.
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