Botanical Overview
Burn Mouth Vine (Rhynchosia minima) belongs to the Fabaceae family. Limited but reliable traditional records indicate this plant has recognized medicinal applications in one or more healing traditions. The legume family (Fabaceae) includes trees, shrubs, and herbs that produce pods (legumes) and form nitrogen-fixing root nodules through symbiosis with bacteria. The flowers are typically pea-shaped with five petals. This large family provides food staples, timber, and numerous medicinal species.

General Description
It can be found on every continent. It is naturalized in Hawaii. This perennial herb has twining or trailing stems which can reach 1. 2 meters in length. The leaves are made up of three leaflets measuring up to 3 to 3. 5 centimeters long. The inflorescence is a raceme of up to 15 flowers. The flowers are yellow with purple or brown veining and measure up to 8 millimeters long. The fruit is one or two centimeters long. This common plant is used as animal forage.
Family Context
The Fabaceae family is large and globally distributed. Notable medicinal members include:
- Soybean — 76 documented uses
- Crab’s Eye — 73 documented uses
- Tamarind — 59 documented uses
- Common Indigo — 51 documented uses
Geographic Distribution
Burn Mouth Vine has been recorded in 10 countries and territories worldwide, including Australia, Benin, Brazil, Ecuador, Kenya, and others.
Traditional Uses
Burn Mouth Vine has been traditionally used for reproductive health.
Reproductive health.
- Abortifacient
In traditional contexts, reproductive health applications typically involve internal preparations such as teas or decoctions. The herb may be taken at specific times during the menstrual cycle.
Active Compounds
Phytochemical research has identified 21 compounds in this species, including a diverse array of phytochemical classes (see the Complete Chemical Inventory below for the full list).
The identified compounds include the following categories:
- Flavonoid: antioxidant compounds that protect cells from oxidative damage
- Phenolic: antioxidant compounds that neutralize free radicals