Nettle Nosebleed Powder

Source

Herbarius Latinus, Louvain ca. 1485 and Paris ca. 1486 editions.

Question

Why would crushed nettle leaves be prescribed for a nosebleed, and does the plant's irritation response help explain the logic?

Materials

• Urtica dioica leaves
• Granite mortar and pestle
• Linen sieve
• Glass jar

Method

• Compared the Urtica entry in Louvain and Paris editions of Herbarius Latinus.
• Used dried nettle leaves left after another nettle project.
• Ground the leaves with a granite mortar and pestle.
• Sieved and stored the fine powder.

Observations

• The grinding produced a fine green-brown powder with a light vegetal odor.
• The texture was airy and easily dispersed.
• Modern physiology gives a plausible explanation for why the remedy might have appeared effective.

Result

• The project produced a historical preparation and a clearer interpretation of the logic behind the remedy.

Uncertainty

• Historical reconstruction and interpretation, not a suggestion to put nettles in anyone's nose.
• Modern explanation helps interpret the claim but does not turn the remedy into modern medical advice.

References

• Herbarius Latinus. Louvain, ca. 1485.
• Herbarius Latinus. Paris, ca. 1486.
• Larkin, Deirdre. The Use of Nettles in Medieval Medicine.
• Bond, Peter. Nettle Leaf Trichomes, SEM.

Next

• Add the Latin passage, translation notes, and safety boundary more explicitly.

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