Botanical Overview
Yellow Azalea (Rhododendron molle) belongs to the Ericaceae family. While not among the most extensively documented medicinal plants, this species has recorded uses that warrant attention from researchers and practitioners. 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.
General Description
This deciduous shrub grows to 50–200 cm (20–79 in) in height, with leaves that are oblong to oblong-lanceolate, 5–11 by 1. 5–3. 5 cm in size. The flowers are yellow with dark red flecks. This azalea is not often seen in cultivation, but is the parent of many yellow-flowered hybrids.
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
Yellow Azalea has been recorded in 10 countries and territories worldwide, including China, Estonia, Georgia, Japan, Latvia, and others.
Traditional Uses
Yellow Azalea has been traditionally used for digestive health, skin and wound care, and pain and inflammation, among other applications.
Digestive health.
- Carminative
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.
Skin and wound care.
- Itch
For skin conditions, the fresh or dried plant is applied topically as a poultice, wash, or compress. A strong decoction can be used to clean wounds and sores. The antimicrobial properties help prevent infection while promoting tissue repair.
Pain and inflammation.
- Arthritis
- Rheumatism
- Swelling
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 4 compounds in this species, including a diverse array of phytochemical classes (see the Complete Chemical Inventory below for the full list).