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Botanical illustration of Yerba Santa
MedicinalSourced entry

Yerba Santa

Eriodictyon californicum

A shrub from the southwestern United States and northern Mexico whose leaves have been used by Indigenous peoples for centuries, especially for breathing problems.

What is Yerba Santa?

Plant family
Namaceae, the nama family
Parts used
The leaves
Where it grows
Native to the southwestern United States and northern Mexico
Genus
Eriodictyon
Species
californicum

Also called

California Yerba Santa, Eriodictyon

Traditionally used for

  • Breathing problems (traditional)
  • Cough

Traditionally described as

  • Traditionally used for breathing problems

Health topics

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

  • Cough

    Traditionally used by Indigenous peoples for breathing problems. It hasn't been studied in people.

Traditions that use it

  • Native American Ethnobotany

    Used by Indigenous peoples for centuries for various ailments, especially breathing problems.

What does the research say?

Traditional use

These are traditional uses, not proven treatments.

  • Yerba santa species have been used by Indigenous peoples for centuries to treat various ailments, especially breathing problems. Despite this long history, many species have never been fully studied.[1]

Laboratory & animal research

Lab and animal results show what might be worth studying in people. They don't show that the herb has these effects in humans.

  • Chemical studies found yerba santa leaves contain an essential oil (including 1,8-cineole, also found in eucalyptus) and plant compounds such as eriodictyol, sterubin and rosmarinic acid. Their effects in people haven't been tested.[2]

In short

It hasn't been studied in people for any health use.

Sources

  1. [1] Chemical characterization and quantitative determination of flavonoids and phenolic acids in yerba santa (Eriodictyon spp.) using UHPLC/DAD/Q-ToF — Journal of Pharmaceutical and Biomedical Analysis · DOI: 10.1016/j.jpba.2023.115570Peer-reviewed study
  2. [2] Chemical Composition of Eriodictyon californicum (California Yerba Santa) Cultivated in Ontario, Oregon, USA — Molecules · DOI: 10.3390/molecules31081356Peer-reviewed study

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