Rhododendron arboreum

Botanical Overview

Rhododendron arboreum belongs to the Ericaceae family. Limited but reliable traditional records indicate this plant has recognized medicinal applications in one or more healing traditions. The heath family (Ericaceae) includes shrubs and small trees with simple, often evergreen leaves that are typically thick and leathery. The flowers are urn-shaped or bell-shaped with fused petals. Many species grow in acidic soils and form mycorrhizal associations, and several produce berries used in traditional medicine.

Family Context

The Ericaceae family is widely distributed worldwide. Notable medicinal members include:

Geographic Distribution

Rhododendron arboreum has been recorded in 10 countries and territories worldwide, including Bhutan, Canada, China, United Kingdom, India, and others.

Traditional Uses

Rhododendron arboreum has been traditionally used for digestive health and pain and inflammation.

Digestive health.

  • Dysentery
  • Diarrhea

For digestive complaints, the herb is typically prepared as a tea or decoction taken before meals. The bitter compounds stimulate digestive secretions and improve nutrient absorption. Some traditions use the powdered root or leaves in small doses as a stomachic tonic.

Pain and inflammation.

  • Ache(Head)

For pain and inflammation, preparations are applied both topically as compresses and taken internally. A warm poultice draws blood to the area and promotes healing, while internal preparations address systemic inflammation.

Active Compounds

Phytochemical research has identified 1 compound in this species: betulinic-acid.

ⓘ Information
Information on this page is compiled from Dr. Duke’s Phytochemical and Ethnobotanical Databases (USDA ARS), a public domain resource. Consult a healthcare professional before using any herbal preparation.
⚠ Caution
Traditional records: This plant has documented uses including Poison. Self-medication with herbs carries risks including allergic reactions, drug interactions, and toxicity. Only use under the supervision of a qualified healthcare professional.

Distribution and Conservation

Reported distribution: Bhutan, Canada, China, United Kingdom, India, Sri Lanka, Nepal, New Zealand, Thailand, Unknown.

Complete Use Records

CategoryCultural Context
PoisonElsewhere, Nepal
DysenteryElsewhere, India
Ache(Head)Nepal
DiarrheaElsewhere
Fish-BonesIndia

Complete Chemical Inventory

CompoundFormulaMW
BETULINIC-ACIDC₃₀H₄₈O₃456.7 Da

Data from PubChem (NIH/NLM, public domain).


References & Further Reading

External Research Links

Data Sources