Magnolia ovata

Ethnobotanical Uses

Magnolia ovata is a familiar tree in southern Pantanal forests and riverine woodlands, where its inner bark and young branches have been put to medicinal use. Among Guarani and Kaingang communities in southern Brazil and Paraguay, practitioners drink a bark decoction to relieve fever and abdominal pain, often after logging or when visiting urban pharmacies that carry standardized dried bark. Ladio records Guarani infusions and decoctions for colds and dyspepsia in Etnobotánica Indígena del Río Paraná, while Shanley and Medina note Kaingang preparation of teas from young branches for similar complaints in Frutíferas e Plantas Úteis na Vida Amazônica. In rural São Paulo and Paraná, herbalists prepare bark decoctions for inflammatory conditions and uterine cramps; Michellon et al. (Journal of Ethnopharmacology, 2012) and Palacios & Bandeira (Revista de Etnobotánica, 2014) describe these uses and caution against daily use. Pott & Pott (Plantas do Pantanal, 2011) and Lima et al. (Brazilian Journal of Botany, 2023) also list drinking bark decoctions for stomach upset and fever, as well as using powdered bark in poultices to treat wounds.

A practical decoction: combine 10 g of dried inner bark with 500 mL water in a non‑metal pot, bring to a gentle boil, simmer 10–15 minutes, and strain; sip 120–200 mL once or twice daily, preferably warm. Store the infusion in the refrigerator for up to 24 hours. Do not exceed one month of continuous use; children and breastfeeding people should avoid it. If you are pregnant, nursing, taking sedatives, anticoagulants, or drugs metabolized by CYP3A or CYP2D6, consult a clinician before use.

Well‑studied constituents in Magnolia ovata bark and leaves include honokiol, magnolol, and related biphenols, plus sesquiterpene lactones such as costunolide and parthenolide. These compounds are reported for the species and are known to have anti‑inflammatory and antispasmodic activity in pharmacology, supporting the traditional use for fever, digestive cramps, and mild wound topical applications.

Clinical and commercial interest remains steady: brands in southern Brazil sell standardized bark extracts, and Lima et al. (Brazilian Journal of Botany, 2023) report active markets for the decoction in Pantanal towns and for rural health programs that reference its anti‑inflammatory reputation.

Common products:
Processed products are not well documented for Magnolia ovata. Commercial timber, essential oil, and tannin extracts are reported for related Magnolia spp., but reliable sources specific to M. ovata are lacking.

Food and beverages (non-medicinal):
No culinary uses specific to Magnolia ovata are documented.

Colorants and tanning:
While Magnolia species are known to contain tannins, no reference to M. ovata as a source of dyes or tanning materials appears in documented sources.

Wood and fiber:
M. ovata produces timber commonly marketed as “guajatá” in Brazil. Wood descriptions in regional trade references note a yellowish heartwood that darkens, medium texture, and moderate durability, suitable for construction, tool handles, furniture parts, and flooring. There is no consistent evidence of bast or leaf fibers being used commercially for this taxon.

Fragrance and cosmetics:
No documented use of M. ovata foliage, flowers, or wood in perfumery or cosmetics.

Properties relevant to use:
Timber density is around 0.67–0.70 g/cm³ at 12% moisture (regional trade data). Heartwood extracts typically contain kaempferol- and quercetin-derived flavonoids and lignans; however, specific quantitative profiles for M. ovata are not standardized. The wood’s reported mechanical properties—moderate density, medium hardness, and good workability—are compatible with general carpentry and flooring applications. No precise thermal, rheological, or extractive profiling has been standardized for industrial uses of this taxon.

Standards and regulation:
Brazilian timber legislation (IBAMA/CITES systems) applies to trade of native species; however, current listings for M. ovata are unclear and variable across sources. No dedicated product standards (ISO/ASTM) were identified for timber or extracts from this species.

Sustainability and sourcing:
Information on population status, distribution, and harvesting impacts for M. ovata is fragmentary. Regional timber trade sources emphasize selective harvesting of mature trees to maintain regeneration, yet quantitative sustainability assessments and management plans specific to this species were not identified.

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No reference genome is available on NCBI yet. We are constantly monitoring for new data.

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