Cup Plant

Reviewed on 6/11/2021
Other Name(s):

Indian Gum, Pilot Plant, Polar Plant, Prairie Dock, Ragged Cup, Rosinweed, Silphe Perfolié, Silphion Perfolié, Silphium perfoliatum, Turpentine Weed.


Cup plant is an herb. The root is used to make medicine.

People take cup plant for digestive disorders.

Be careful not to confuse cup plant (Silphium perfoliatum) with Silphium laciniatum. Both are known as rosinweed.

How does it work?

It is not known how cup plant might work as a medicine.


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Uses & Effectiveness

Insufficient Evidence to Rate Effectiveness for...

  • Digestive disorders.
  • Other conditions.
More evidence is needed to rate the effectiveness of cup plant for these uses.

Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).

Side Effects

It is not known if cup plant is safe or what the possible side effects might be.


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Special Precautions & Warnings

Pregnancy and breast-feeding: Not enough is known about the use of cup plant during pregnancy and breast-feeding. Stay on the safe side and avoid use.


The appropriate dose of cup plant depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for cup plant. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

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Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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Lust J. The herb book. New York, NY: Bantam Books, 1999.

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