AMPHIPTERYGIUM ADSTRINGENS

The Cuachalalate Tree — A Mexican Bark Medicine for Gastric, Oral, and Anti-Inflammatory Use

BOTANICAL IDENTIFICATION

Scientific Name: Amphipterygium adstringens (Schltdl.) Schult. f.
Common Names: Cuachalalate, Matlacual, Cascara de la tierra
Family: Anacardiaceae

This small deciduous tree, native to Mexico’s dry forests and mountainous regions, grows up to 6 meters tall. It features leathery leaves and rough bark, which is manually harvested and dried for traditional medicine. The bark is the most commonly used part, known for its astringent and protective properties.

CULTURAL AND HISTORICAL USE

Used for centuries in Mexican traditional medicine, especially among Nahua and rural herbalists:

• Bark infusions and decoctions treat gastric ulcers, gastritis, and stomach cancer

• Applied topically or as a rinse for mouth sores, gingivitis, and skin infections

• Used in postpartum care to tone reproductive tissues

• Recognized in modern herbal pharmacies across Mexico

KEY BIOACTIVE COMPOUNDS & BENEFITS

These compounds support traditional use for ulcers, wounds, and oral conditions with scientific evidence showing gastroprotective and anti-inflammatory effects.

HOW IT WORKS IN THE BODY

• Gastroprotection: Triterpenoids coat and protect gastric mucosa, preventing ulceration and promoting repair

• Astringency: Tannins tighten and seal tissues, aiding in oral, digestive, and skin healing

• Anti-inflammatory: Polyphenols reduce inflammatory response in mucosal linings

• Antimicrobial Action: Anacardic acids inhibit bacterial growth, especially Helicobacter pylori

DOSE GUIDELINES

PREPARATION AND USES

• Decoction: Simmer dried bark 10–20 minutes for internal use in gastric or liver complaints

• Oral rinse: Cooled decoctions used as antiseptic mouthwash

• Capsules: Common in modern use for ease of dosage

• Often combined with calendula, licorice, or chamomile in GI blends

OPTIMAL CONTEXT FOR USE

• For individuals with gastritis, ulcers, or acid reflux

• Useful in oral hygiene protocols for gingivitis and mouth ulcers

• Supportive during recovery from surgery or childbirth

• Adjunctive care in gastric or esophageal cancer (under supervision)

SUSTAINABILITY AND ETHICAL HARVESTING

• Overharvesting has threatened wild populations; sourcing from regulated cultivators is advised

• Bark should be harvested from mature trees only, in vertical strips to prevent girdling

• Listed in Mexican official herbal pharmacopoeia, promoting sustainable use

• Community projects support reforestation and cultivation in native ranges

SAFETY AND CAUTIONS

• Generally well tolerated; avoid in pregnancy due to astringent uterine effects

• May interfere with absorption of medications if taken simultaneously due to mucosal coating

• Not recommended for long-term high-dose use without supervision

REFERENCES

• Lozoya, X. (1994). Plantas Medicinales de México

• Pérez, R. M. et al. (2001). “Gastroprotective activity of Amphipterygium adstringens.” Journal of Ethnopharmacology

• Secretaría de Salud (2001). Farmacopea Herbolaria de los Estados Unidos Mexicanos

FINAL NOTE

Amphipterygium adstringens (cuachalalate) remains one of Mexico’s most trusted medicinal barks, offering healing for the gut, mouth, and skin. As its scientific study continues, the wisdom of traditional use is increasingly validated. Sustainable harvest and respect for Indigenous knowledge ensure this bark medicine endures for generations to come.