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Difference Between Milk Thistle & Burdock

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thistle image by Paul Knott from Fotolia.com

According to the USDA, burdock and milk thistle are each listed as non-native weeds and both have been used for centuries in treating certain disorders.

Characteristics

The USDA also states that milk thistle has not been observed growing in every U.S. state, whereas burdock grows everywhere in the U.S.

Use

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fleurs 230 image by Jacques Ribieff from Fotolia.com

Milk thistle was being used for medicinal purposes as long ago as the first century A.D. Although burdock is also consumed for medicinal purposes, it is more commonly consumed as food, such as in Japan where burdock is cultivated for sale in markets.

Status

Milk thistle has become particularly problematic in California where it has been listed as an invasive species of weed. Burdock is more widespread but is not listed as invasive in California.

Medicinal Use

According to an article in "Better Nutrition," milk thistle seeds are collected and used to enhance liver function whereas the leaves of burdock have been used to treat kidney disorders.

Argicultural Use

An article in "Countryside & Small Stock Journal" reports that Burdock is harvested and burned by farmers who then spread the ashes to balance the pH of their soil.

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