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:
- King’s Cure — 24 documented uses
- Mountain Laurel — 18 documented uses
- Bearberry — 15 documented uses
- Indian Wintergreen — 15 documented uses
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.