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Photo: J.M.Garg, CC BY 3.0 (via Wikimedia Commons)

Yuan Zhi (Chinese Senega Root)

Polygala tenuifolia

Also known as Yuan Zhi, Chinese Senega Root, Thinleaf Milkwort, Radix Polygalae, Zhi Yuan Zhi (honey-fried form)

At a glance
Family
Polygalaceae (Milkwort family)
Type
Perennial herb
Parts used
Root and root bark, used raw or honey-fried
Size
A modest, slender plant, 6 to 16 inches tall
Bloom
Small blue-violet to purple flowers along thin spikes, in early to mid summer
Habitat
Dry grassy slopes, hillsides, and sandy roadside banks across northern China, Korea, and Siberia
Acquisition
Buy

Key benefits

Traditionally calms the mind
Traditionally eases restless sleep
Traditionally clears phlegm and cough
Traditionally supports memory and focus

Traditional uses

In Chinese herbal medicine, Yuan Zhi has long been counted among the fifty fundamental herbs, prized for its gentle work on what practitioners call the shen, or spirit. Root diggers and physicians alike valued it for quieting a busy mind before sleep, for steadying a heart that felt unsettled by worry, and for helping loosen phlegm that had settled deep in the chest after a lingering cough. Scholars and students in particular were said to favor it, believing it sharpened memory and resolve during long nights of study. Its very name, meaning something like 'far-reaching ambition,' reflects the hope placed in this small, unassuming root for centuries.

How to grow & use it

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Pairs well with
  • Poria (Fu Ling)
  • Schisandra berry (Wu Wei Zi)
  • Reishi mushroom
Substitutes
  • Sour jujube seed (Suan Zao Ren)
  • Seneca snakeroot (Polygala senega), a related Western cousin
Choose it when

When the mind won't stop replaying the day, and you long for the kind of quiet that lets you finally rest.

Did you know?

The Chinese name Yuan Zhi translates roughly to 'far-reaching aspiration,' and old herbal texts describe it being given to scholars and officials, who hoped its quiet, steadying effect on the mind would sharpen both memory and resolve.

Safety

Raw Yuan Zhi root can irritate the stomach, which is why it's traditionally honey-fried before use, and it's best avoided with ulcers, gastritis, or during pregnancy. Use caution if you take sedative medications, since it's traditionally combined with calming herbs.