Traditional uses of Hollyleaved Barberry (Mahonia aquifolium)
Hollyleaved Barberry, or Mahonia aquifolium, has a history of use among Native American groups, especially the Blackfoot and Karok. Its roots, leaves, and fruits were used in remedies for stomach trouble, sickness, and other ailments, though some traditions also considered the plant poisonous.
August 31, 2026
By Diego Navarro
TL;DR: Hollyleaved Barberry (Mahonia aquifolium) was traditionally used by the Blackfoot and Karok peoples for various remedies, including decoctions of the root for stomach trouble and hemorrhages, and steambaths for 'yellow fever.' The Karok also regarded the plant as poisonous and noted that eating the fruit could cause diarrhea. All uses are documented in early twentieth-century ethnobotanical sources.
Last updated: August 31, 2026
What traditional uses of Hollyleaved Barberry were recorded among Native American groups?
Hollyleaved Barberry was used by the Blackfoot and Karok peoples for different remedies. The Blackfoot recorded decoctions of the root for stomach trouble and hemorrhages. The Karok used leaves and roots as a steambath for 'yellow fever,' and decoctions of the roots as a general medicine, but also considered the plant poisonous. (McClintock, 1909; Schenck & Gifford, 1952)
How did the Karok people use Hollyleaved Barberry?
The Karok used the leaves and roots of Hollyleaved Barberry as a steambath for 'yellow fever,' and made a root decoction as a general medicine. They also believed the plant was poisonous and noted that eating the fruit could cause diarrhea. (Schenck & Gifford, 1952; Baker, 1981)
Photo by Quartl, licensed CC BY-SA 3.0, via Wikimedia Commons.
What uses did the Blackfoot record for Hollyleaved Barberry?
The Blackfoot used a decoction of the root for stomach trouble and hemorrhages. These uses were documented in 1909 and show the plant's role in traditional Blackfoot remedies, focusing on internal ailments. (McClintock, 1909)
Who should grow Hollyleaved Barberry, and who should skip it?
Grow Hollyleaved Barberry if you want a low-water shrub that handles drought and you are not looking for edible fruit. It is not recorded as palatable to humans and some traditions considered it poisonous. Skip it if you have pets or kids who chew leaves or fruit, or if your soil stays wet after a freeze.
Photo by Malchen53, licensed CC BY-SA 3.0, via Wikimedia Commons.
What are the trade-offs of growing Hollyleaved Barberry?
Hollyleaved Barberry is tough in dry conditions, but the fruit is not considered edible and some traditions warned it could cause diarrhea. It is not a good fit for gardens where kids or pets might eat the berries. It also will not thrive in heavy clay that stays wet in winter.
How do the recorded traditions compare for Hollyleaved Barberry?
| Tradition | Part Used | What Was Recorded | Source |
|---|---|---|---|
| Blackfoot | Root | Decoction for stomach trouble | McClintock, 1909 |
| Blackfoot | Root | Decoction for hemorrhages | McClintock, 1909 |
| Karok | Leaves, roots | Steambath for 'yellow fever' | Schenck & Gifford, 1952 |
| Karok | Root | Decoction as a good medicine for all kinds of sickness | Schenck & Gifford, 1952 |
| Karok | Unspecified | Plant considered poisonous | Schenck & Gifford, 1952 |
| Karok | Fruit | Fruits, if eaten, caused diarrhea | Baker, 1981 |
What sources document these traditional uses?
- McClintock, Walter, 1909, Medizinal- Und Nutzpflanzen Der Schwarzfuss Indianer, Zeitschriff fur Ethnologie 41:273-9, page 275
- Schenck, Sara M. and E. W. Gifford, 1952, Karok Ethnobotany, Anthropological Records 13(6):377-392, page 383
- Baker, Marc A., 1981, The Ethnobotany of the Yurok, Tolowa and Karok Indians of Northwest California, Humboldt State University, M.A. Thesis, page 38
Valeria and Diego are not doctors, and nothing here is medical advice. This article shares traditional and ancestral plant wisdom that was passed down through generations. It may be beneficial when applied with your own discretion, and with medical supervision as needed.
Frequently Asked Questions
What did the Blackfoot use Hollyleaved Barberry for?
The Blackfoot used a decoction of the root for stomach trouble and hemorrhages, as recorded by McClintock in 1909. These uses were documented as part of their traditional remedies for internal ailments.
How did the Karok people view Hollyleaved Barberry?
The Karok used Hollyleaved Barberry in steambaths for 'yellow fever' and as a general medicine, but they also considered the plant poisonous and noted that eating the fruit could cause diarrhea, according to Schenck and Gifford in 1952.
Is Hollyleaved Barberry considered edible?
Hollyleaved Barberry is not recorded as palatable to humans, and the Karok specifically noted that eating the fruit could cause diarrhea. There is no tradition of using it as a food plant in the sources cited.
Are there any toxicity concerns with Hollyleaved Barberry?
While no modern toxicity is recorded, the Karok tradition considered the plant poisonous and warned about the effects of eating the fruit. This is based on historical documentation, not current medical advice.
What kind of growing conditions does Hollyleaved Barberry need?
Hollyleaved Barberry has a low water requirement, making it suitable for dry gardens. However, it will not thrive in heavy clay that stays wet through a freeze, and is not a good choice for gardens where children or pets might eat the berries.
Who should consider planting Hollyleaved Barberry?
Gardeners looking for a drought-tolerant shrub that is not grown for edible fruit may consider Hollyleaved Barberry. Those with pets or children who might eat the berries, or with persistently wet soil, should skip it.
Want this worked out for your own yard?
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If you are weighing Hollyleaved Barberry for your yard, I hope this gives you the real story behind its roots and its risks.
Frequently asked questions
What did the Blackfoot use Hollyleaved Barberry for?
The Blackfoot used a decoction of the root for stomach trouble and hemorrhages, as recorded by McClintock in 1909. These uses were documented as part of their traditional remedies for internal ailments.
How did the Karok people view Hollyleaved Barberry?
The Karok used Hollyleaved Barberry in steambaths for 'yellow fever' and as a general medicine, but they also considered the plant poisonous and noted that eating the fruit could cause diarrhea, according to Schenck and Gifford in 1952.
Is Hollyleaved Barberry considered edible?
Hollyleaved Barberry is not recorded as palatable to humans, and the Karok specifically noted that eating the fruit could cause diarrhea. There is no tradition of using it as a food plant in the sources cited.
Are there any toxicity concerns with Hollyleaved Barberry?
While no modern toxicity is recorded, the Karok tradition considered the plant poisonous and warned about the effects of eating the fruit. This is based on historical documentation, not current medical advice.
What kind of growing conditions does Hollyleaved Barberry need?
Hollyleaved Barberry has a low water requirement, making it suitable for dry gardens. However, it will not thrive in heavy clay that stays wet through a freeze, and is not a good choice for gardens where children or pets might eat the berries.
Who should consider planting Hollyleaved Barberry?
Gardeners looking for a drought-tolerant shrub that is not grown for edible fruit may consider Hollyleaved Barberry. Those with pets or children who might eat the berries, or with persistently wet soil, should skip it.
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