Cuachalalate

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 Compound/Class Location in Plant Human Benefit Role in Plant Triterpenes Bark Gastroprotective, anti-inflammatory Defense against herbivory Anacardic acids Bark and resin Antimicrobial, cytotoxic to cancer cells Antipathogenic Flavonoids Bark Antioxidant, anti-ulcer UV and stress protection Tannins Bark Astringent, promotes tissue repair Protection and wound sealing 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 Type Typical Dose Purpose Bark decoction 5–10 g per 500 mL water, simmered Gastric ulcers, digestive inflammation Bark powder capsule 250–500 mg, 1–2x daily Chronic mucosal irritation, oral support Oral rinse 5 g bark in 250 mL water (swish, spit) Gingivitis, mouth sores 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.