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Eucommia (Eucommia ulmoides)

Botanical Information

  • Family: Eucommiaceae
  • Common Names: Eucommia, Hardy Rubber Tree, Du Zhong
  • Parts Used: Bark

Description

Eucommia ulmoides is a deciduous tree native to China, known for its rubbery inner bark and traditional medicinal use in Chinese herbalism. It is one of the 50 fundamental herbs in Traditional Chinese Medicine (TCM) and is primarily valued for its ability to strengthen bones, tendons, and the lower back while supporting kidney and liver function.

Historical and Traditional Uses

  • Used in TCM as a kidney and liver tonic for longevity and vitality.
  • Traditionally prescribed to strengthen bones, tendons, and ligaments.
  • Employed in the treatment of lower back pain, arthritis, and joint weakness.
  • Used to regulate blood pressure and promote cardiovascular health.

Constituents

  • Lignans
  • Iridoids
  • Flavonoids
  • Triterpenes
  • Polysaccharides
  • Essential oils

Actions

  • Adaptogenic
  • Anti-inflammatory
  • Kidney tonic
  • Hepatoprotective
  • Bone and joint support
  • Hypotensive (blood pressure-lowering)

Medicinal Uses

1. Bone and Joint Strengthening:
Traditionally used to support bone density and promote the healing of fractures, ligament injuries, and arthritis.

2. Kidney and Liver Tonic:
Considered a premier herb for nourishing kidney essence and promoting longevity.

3. Blood Pressure Regulation:
Research suggests it may help regulate blood pressure and improve cardiovascular function.

4. Immune System Support:
Contains compounds that support immune resilience and reduce inflammation.

5. Stress and Energy Support:
Acts as an adaptogen, helping the body cope with stress and fatigue.

Preparation and Dosage

Decoction (Tea):

  • 5-10 grams of dried bark per 3 cups of water, simmered for 20-30 minutes. Drink up to twice daily.

Tincture:

  • 2-5 ml taken up to 3 times daily.

Capsules/Powder:

  • 500-1000 mg per dose, taken 1-2 times daily.

Precautions and Contraindications

  • Pregnancy and Lactation: Traditionally used to prevent miscarriage, but consult a practitioner before use.
  • Blood Pressure Medications: May enhance the effects of antihypertensive drugs.
  • Autoimmune Conditions: Use with caution as it modulates immune function.

Energetics (Traditional Medicine Perspectives)

  • Traditional Chinese Medicine (TCM): Warm, sweet; tonifies the Kidney and Liver meridians, strengthens Yang, and nourishes Jing (essence).
  • Traditional Western Herbalism: Used for connective tissue repair and longevity support.
  • Ayurveda: Functions similarly to herbs that balance Vata and Pitta, offering structural and adaptogenic support.

Combinations

  • For Bone and Joint Health: Combine with cissus, nettle, and horsetail.
  • For Kidney Support: Combine with rehmannia and astragalus.
  • For Blood Pressure Regulation: Combine with hawthorn and motherwort.

Harvesting and Storage

  • Harvesting: Bark is collected from mature trees and dried for medicinal use.
  • Drying: Air dry in a well-ventilated, shaded area.
  • Storage: Store dried bark in an airtight container away from moisture and light.

Modern Research

Studies confirm Eucommia ulmoides’s role in promoting bone health, regulating blood pressure, and acting as an adaptogen, reinforcing its traditional uses.

Eucommia remains a valuable herb in both traditional and modern herbal medicine, particularly for supporting bones, kidneys, and cardiovascular health.