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Product Description


Compass Plant, Rosinweed (also refers to S. integrifolium), Turpentine Plant, Polar Plant"

Silphium is an ancient Greek term for "resinous juices". Perfoliatum is from the Latin for "with the leaf surrounding the stem so the stem appears to pass through the leaf".

Sun Exposure               Prairie, Savanna
Soil Moisture Wet Mesic, Mesic
Bloom Time

Summer, Fall                       July, August, September

Bloom Color Yellow
Max Height 8 feet
Wetland Code FACW-
Germ Code  C(60)
Seeds Per Ounce   1,400


Found throughout the tallgrass Prairie region and south on mesic prairies. Bright yellow flowers bloom from July through August. Very tall plant, sometimes reaching 8 or more feet. The taproot is also very long, reaching as much as 4 to 5 feet into the ground. The distinctive joined leaves form a cup that can actually hold water after a rain. Many times we have seen finches and sparrows bathing in the cup on a hot summer day.

Edible Uses: Unknown

Medicinal Uses: Cup plant was employed medicinally by several native North American Indian tribes who used it to treat a variety of complaints. It is little, if at all, used in modern herbalism. A decoction of the root has been used to treat the stoppage of periods, and also to treat morning sickness and to prevent the premature birth of a child. In view of these conflicting uses, it is best that it is not used by pregnant women unless under the guidance of a qualified practitioner. The root is alterative, antispasmodic, diaphoretic, emmenagogue, febrifuge, hepatic, stimulant, styptic and tonic. It is used in the treatment of liver and spleen disorders and has also been used to treat morning sickness. A decoction of the root has been used internally in the treatment of back and chest pain and lung haemorrhages. A decoction of the root has been used as a face wash to treat paralysis. A poultice of the moistened dried root has been applied to wounds to stop the bleeding.

Herbal Uses: Unknown

Product Videos

Cup Plant - Silphium perfoliatum at Ion Exchange (01:25)
Earthyman films Cup Plant (Silphium perfoliatum) growing at Ion Exchange in NE iowa. http://www.ionxchange.com Bright yellow flowers bloom in July/August.
  • Cup Plant - Si...
    Earthyman films Cup Plant (Silphium perfoliatum) growing at Io...
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