🪃Aboriginal Australian Medicine

Mountain Ash Bark

Eucalyptus regnans

About Mountain Ash Bark

Mountain Ash Bark (Eucalyptus regnans) is a herb used in the Aboriginal Australian Medicine tradition to help with Wound Healing, Fever, Respiratory Issues, and Skin Health. The bark is the part traditionally used, used both internally and topically.

Botanical background

Eucalyptus regnans, known variously as mountain ash, swamp gum, or stringy gum, is a species of Eucalyptus native to Tasmania and the state of Victoria in southeastern Australia. It is the tallest flowering plant and one of the tallest trees in the world, second to the coast redwood (Sequoia sempervirens). A straight-trunked tree with smooth grey bark and a stocking of rough brown bark to 5–20 metres (16–66 ft) above the ground, it regularly grows to 85...

Source: Wikipedia, via iNaturalist

Parts used

Bark · both
🫖

Decoction

1–2 cups daily
  • Add 1–2 tsp of dried Mountain Ash Bark to 2 cups of cold water.
  • Bring to a boil, then simmer for 15–20 minutes.
  • Strain and drink warm.
💧

Tincture

20–40 drops in water, 2–3× daily
  • Pack dried Mountain Ash Bark into a jar and cover with 40–60% alcohol.
  • Seal and steep for 4–6 weeks, shaking daily.
  • Strain and store in a dark dropper bottle.
💊

Powder / Capsule

500 mg – 1 g, 1–3× daily
  • Grind dried Mountain Ash Bark into a fine powder.
  • Fill size 00 capsules or stir into smoothies or honey.
🖐️

Topical / Poultice

1–2× daily as needed
  • Mash fresh Mountain Ash Bark or mix the powder with a little water to form a paste.
  • Apply to the affected area for 20–30 minutes.
🫙

Infused Oil

Massage into affected area 1–2× daily
  • Fill a jar with dried Mountain Ash Bark.
  • Pour over a carrier oil until submerged.
  • Leave for 4–6 weeks, then strain.
  • Use topically or as a salve base.
♨️

Steam Inhalation

1–2× daily during acute symptoms
  • Add 2–3 tbsp of Mountain Ash Bark to a bowl of just-boiled water.
  • Drape a towel over your head and inhale steam for 5–10 minutes.
🛁

Herbal Bath

2–3× per week as needed
  • Brew 4–6 tbsp of Mountain Ash Bark in 1 litre of hot water for 15 minutes, strain, and add to a warm bath.
  • Soak for 20–30 minutes.

Contraindications

  • Pregnancy & breastfeeding — insufficient safety data; consult your doctor
  • Children under 12 — therapeutic dosage not established

Warnings

⚠️ Pregnancy & Breastfeeding

Safety during pregnancy and breastfeeding has not been established for most herbal remedies. Consult your midwife or doctor before use.

⚠️ Allergic Reactions

Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.

⚠️ Not Medical Advice

This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.

Drug & herb interactions

No specific drug or herb interactions are documented for Mountain Ash Bark in our references. This doesn’t mean none exist — always check with a pharmacist or doctor before combining any new herb with prescription medication.

Where to find in nature

Native region

Australia

Climate

Varied — arid to tropical

Habitat

Eucalyptus woodland, desert shrubland, tropical rainforest, and coastal areas of Australia

🌿 To see Mountain Ash Bark growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier — never consume a plant you are not 100% certain of.

Where to buy

In store

  • Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
  • Naturopathic clinics and integrative medicine practices
  • Specialist herbal apothecaries and herbalist practices
  • Farmers markets with herb vendors

Online

iHerb

Wide selection of standardised extracts, capsules, and powders with lab testing

Mountain Rose Herbs

Premium bulk dried herbs — certified organic, ethically sourced

Starwest Botanicals

Large selection of certified organic bulk herbs and powders

Herb Pharm

High-quality liquid extracts and tinctures, rigorous quality standards

Amazon

Convenient — verify brand certifications and check third-party testing

Etsy

Small-batch artisan herbalists, hand-harvested and wildcrafted herbs

Quality tips

When buying Mountain Ash Bark, look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products — quality varies enormously.