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Botanical illustration of Prickly Ash
MedicinalSourced entry

Prickly Ash

Zanthoxylum americanum

The "toothache tree", a thorny North American shrub whose bark Native Americans used for toothache, rheumatism, fevers, colds and coughs.

What is Prickly Ash?

Plant family
Rutaceae, the citrus family
Parts used
The bark, root bark and berries
Where it grows
North America, along riverbanks and in moist woods, thickets and rocky hillsides
Genus
Zanthoxylum
Species
americanum

Also called

Northern Prickly Ash, Common Pricklyash, Toothache Tree

Older scientific names

Xanthoxylum americanum

Traditionally used for

  • Toothache (traditional)
  • Rheumatism (traditional)
  • Fever (traditional)
  • Colds and coughs (traditional)

Traditionally described as

    Health topics

    Where Prickly Ash appears in symptom search, and why. Being listed doesn't mean it's a proven treatment.

    • Colds and Nasal Congestion

      Bark tea was a Native American remedy for colds, coughs and fever. Not tested in trials.

    • Joint Discomfort

      Native Americans used the bark for rheumatism and swollen joints. Not tested in trials.

    Traditions that use it

    • Native American Ethnobotany

      Used by many tribes, including the Cherokee, Creek, Iroquois, Ojibwa and Potawatomi, for toothache, rheumatism, fevers, colds and coughs.

    Safety

    Pregnancy

    • A strong decoction of the bark was taken by Native Americans to cause miscarriages.[1]

    What does the research say?

    Traditional use

    These are traditional uses, not proven treatments.

    • Prickly ash is a thorny shrub or small tree whose twigs smell of lemon peel. Many Native American tribes used it as medicine. It's also called the toothache tree, because the bark was smoked, chewed or packed around an aching tooth.[1]

    • Native American uses recorded by the US Department of Agriculture include:

      • Bark tea for back pain, cramps, lung problems, fevers, colds and coughs
      • A wash of the bark for itchy skin and swollen joints
      • Inner bark on the skin for rheumatism and sharp pains, or held in the throat for sore throats
      • Root bark for colic, rheumatism and gonorrhea
      • The berries for chest and throat illnesses, and in cough syrups

      These are recorded uses, not tested treatments.[1]

    In short

    Native Americans used a bark decoction to cause miscarriage.

    Sources

    1. [1] Plant Guide: Common Pricklyash, Zanthoxylum americanum P. Mill. — U.S. Department of Agriculture, Natural Resources Conservation Service, National Plant Data CenterGovernment health agency

    This information is educational and traditional in nature, and is not a substitute for professional medical advice.