Rootwork

Comfrey

Symphytum officinale

BoraginaceaeEurope and western Asia

Description

overall appearance

Perennial herb growing 2-4 feet tall with large, hairy leaves and drooping clusters of tubular flowers.

roots

Deep, thick, black-skinned taproot extending 6-10 feet deep; white, mucilaginous interior; regenerates from root fragments.

stem

Thick, hollow, branching stems; covered with stiff hairs; succulent texture; contains abundant mucilage.

leaves

Large, lance-shaped leaves 4-10 inches long; rough, hairy texture; alternate arrangement; prominent parallel veins.

flowers

Drooping clusters of tubular flowers; white, pink, purple, or blue; bell-shaped with 5 lobes; appear in summer.

fruits/seeds

Four small, hard nutlets; black when mature; contained within persistent calyx; reproduce primarily by root division.

Active Compounds

Allantoin (cell proliferation, wound healing)Mucilage (soothing, protective, anti-inflammatory)Pyrrolizidine alkaloids (hepatotoxic; limit internal use)Rosmarinic acid (anti-inflammatory, antioxidant)Tannins (astringent, wound healing)Choline (cellular function, nerve health)

Traditional Uses

  • Bone fractures and bone healing
  • Wounds, cuts, and bruises
  • Sprains and muscle injuries
  • Skin conditions and ulcers
  • Respiratory ailments (historically internal)
  • Digestive disorders (historically internal)

Modern Applications

  • External wound healing and tissue repair
  • Topical anti-inflammatory for injuries
  • Skin conditions and dermatitis (external only)
  • Bruises and soft tissue trauma
  • Joint and muscle pain (external application)
  • Osteoarthritis support (topical preparations)

⚠️ Safety Information

Contraindications

  • Internal use (oral consumption) due to liver toxicity
  • Pregnancy and breastfeeding
  • Liver disease or dysfunction
  • Open wounds (may promote healing too rapidly, trapping infection)

Side Effects

  • Liver damage with internal use (pyrrolizidine alkaloids)
  • Skin sensitivity in some individuals with topical use
  • Rapid wound closure may trap debris or infection

Drug Interactions

  • Liver-metabolized medications (if used internally)
  • No significant interactions with external use

Parts Used

  • Leaves (external use only due to safety concerns)
  • Roots (traditional internal use now discouraged)
  • Fresh plant juice (external use)
  • Dried aerial parts (external preparations)

Preparation Methods

EXTERNAL USE ONLY - 2-3 teaspoons dried leaves per cup for compresses

EXTERNAL USE ONLY - roots simmered for poultices

EXTERNAL USE ONLY - 1:5 ratio with 40% alcohol

Fresh crushed leaves applied directly to injuries

Dried leaves in carrier oil for topical anti-inflammatory use

Related Plants

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Borago officinalis

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Wounds, cuts, and skin injuriesInsect bites and stingsRespiratory ailments including coughs and bronchitis
Disclaimer: For educational purposes only. This is not medical advice. Always consult a qualified healthcare provider.