Witnessed by: Western
Horse chestnut (Aesculus hippocastanum), of the Sapindaceae family. Large spreading tree with palmate leaves and candle-like flower spikes; native range: mountain woods of the Balkans, long planted across Europe as an avenue tree. Globally recognized as conker tree, Spanish chestnut (in error) in English. The part used is seed and bark. Shining mahogany seed, bitter and strongly astringent, drying to the mouth.
In this cross-tradition database, we analyze how this substance operates across world medicine systems — tracking its traditional tastes, temperatures, tissue affinities, post-digestive effects, and planetary correspondences across Ayurveda, Unani, and Western herbalism.
HORSE CHESTNUT
IDENTITY
Name
- Common
- horse chestnut
- Scientific name
- Aesculus hippocastanum L.
- Family
- Sapindaceae
Form
- Part used
- seed and bark
PROPERTIES
Nature
Taste
how the plant declares itself on the tongue
- Western
- bitter · astringent
Temperature
- Western
- cool
Affinity
where in the body it travels
Organs / channels
- Western
- circulation · blood
PRACTICE
Virtue
Actions
- Western
- venotonic, anti-oedematous, anti-inflammatory, astringent, capillary-sealing
Cautions
Contraindications: bleeding disorders; impaired kidney or liver function; the raw seed is not to be eaten
Toxicity: raw seed contains esculin and is toxic, causing gastro-intestinal upset; only the processed, aescin-standardised preparation is safe internally
Interactions
- Western
- anticoagulants: coumarin esculin and aescin may add to anticoagulant and antiplatelet action · antidiabetic agents: may lower blood sugar and add to hypoglycaemic effect
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