This article is part of the Yaogará Ark, a living archive of Amazonian teacher plants and allied materia medica.

Abstract

Piper aduncum (commonly known as Matico or spiked pepper) is an Amazonian shrub extensively utilized by Indigenous and mestizo communities for its potent topical antiseptic properties and wound-healing efficacy. Rich in essential oils and phenylpropanoids, the plant holds pivotal roles in traditional medicine, particularly field care for wounds and skin infections. Ongoing pharmacological investigations reveal antimicrobial and anti-inflammatory effects that underpin its ethnomedical applications, while conservation concerns and cultural rights issues necessitate mindful use and documentation (Guerrini et al. 2009) (Durofil et al. 2021).

Botanical Classification

  • Family: Piperaceae
  • Genus: Piper
  • Species: Piper aduncum L.
  • Common synonyms in the literature: P. angustifolium, P. celtidifolium, P. elongatum

Piper aduncum is a tropical, evergreen, multi-stemmed shrub to small tree, typically ranging from 3–7 m in height. Leaves are opposite, lanceolate to narrowly elliptic (approximately 12–20 cm long), with a prominent peppery aroma attributable to high concentrations of volatile oils. The lamina is often glabrous to sparsely pubescent, with a clear pellucid punctation that betrays essential oil glands. Inflorescences are slender spikes bearing numerous small, sessile flowers; fruits are drupaceous, with minute black seeds.

The species exhibits the vegetative plasticity common to Piperaceae, rooting readily from nodal segments and forming dense thickets in suitable habitats. Diagnostic characters include the elongated spike-like inflorescences and the characteristic fragrance of crushed leaves. In the field, confusion with other Piper species is possible; correct identification benefits from attention to spike morphology, leaf venation, and scent, alongside regional floras and herbarium vouchers (Wikidoc Matico) (Wikipedia Piper aduncum).

Geographical Distribution and Habitat

Piper aduncum is native to the Neotropics, with a natural range spanning Southern Mexico and the Caribbean through much of Amazonian and Andean South America. Its ecological amplitude and tolerance for disturbance have facilitated secondary expansions; the species now occurs widely in parts of tropical Asia, Melanesia, and localized areas of the subtropical United States (e.g., Florida) and Hawaii. In some island ecosystems (e.g., New Guinea), it has been recorded as invasive, forming dense stands that can alter light regimes and soil moisture dynamics (Wikidoc Matico) (Wikipedia Piper aduncum).

Within its native and naturalized ranges, P. aduncum thrives in:

  • Secondary forests, fallows, and forest edges
  • Riverbanks, landslides, and road cuts
  • Disturbed sites including gardens and agroforestry margins

As a pioneer or early-successional species, Matico rapidly colonizes open gaps, aided by zoochorous and hydrochorous seed dispersal and vigorous vegetative propagation. It tolerates a broad range of rainfall and soils, though it prefers well-drained substrates with periodic disturbance. Elevation tolerance is broad in the tropics, with frequent occurrence from lowland rainforest basins into lower montane zones. Its success in human-modified landscapes underlies both its ready cultural availability and, outside its native range, its management challenges (Wikipedia Piper aduncum).

Ethnobotanical Context

Across Amazonian Indigenous communities (e.g., Shipibo, Asháninka) and mestizo rural healers, Matico leaves function as a frontline remedy for cuts, wounds, insect bites, and superficial skin infections. Fresh leaves are commonly chewed or macerated and applied directly as a poultice to staunch bleeding and disinfect injuries. In Peru and adjacent regions, historical uses include controlling hemorrhage, supporting ulcer care, and serving as an internal astringent in constrained clinical contexts. Urban ethnobotanical markets in Andean and Amazonian cities continue to sell Matico for first aid and minor infections (Wikidoc Matico) (Wikipedia Piper aduncum) (Guerrini et al. 2009).

Nineteenth-century European materia medica adopted Matico as a recognized styptic and antiseptic—at times as a substitute for cubeb and other Piperaceae-derived agents in urogenital and wound care—reflecting trans-Atlantic pharmacognosy in an era when botanical antiseptics were ascendant (Wikipedia Piper aduncum). In contemporary settings, surveys of medicinal plant commerce in the Central Andes corroborate ongoing use of Matico in topical and first-aid contexts, with a strong preference for leaf material and preparations aligned with traditional praxis (poultices, washes, powders) (Macía, Garcia, & Vidaurre 2005).

Ethnomedical persistence is pronounced where pharmaceutical access is limited. Field studies underscore Matico’s role in community-based public health, particularly as a locally accessible antiseptic covering gaps in formal healthcare delivery (Guerrini et al. 2009). In Northern Peru, documentation of traditional medicinal plant use situates Matico within a broader pharmacopeia that integrates botanical first aid with ritual and symptomatic care, reflecting layered medical syncretism (Bussmann & Sharon 2006).

While not a psychoactive “teacher plant,” Matico is integrated into local healing repertoires and may be invoked symbolically in community rituals or used as an adjunct in plant dietas focused on bodily resilience, including contexts adjacent to banisteriopsis-caapi-centered ceremonies where protective and cleansing plants are often incorporated as topical or aromatic allies (Wikidoc Matico) (Guerrini et al. 2009).

Phytochemistry and Pharmacology

The medicinal value of Matico centers on essential oils and phenylpropanoid-rich profiles, with notable chemotypic variation across geography and ecology. Core constituents repeatedly reported include:

  • Dillapiole (major phenylpropanoid and frequent chemotype marker)
  • Myristicin
  • 1,8-cineole (eucalyptol)
  • β-ocimene

These metabolites confer antimicrobial, astringent, anti-inflammatory, and insecticidal activities that align with empirical traditional uses (Durofil et al. 2021). Essential oil composition may shift with factors such as altitude, seasonality, and phenological stage, leading to combinations that variably accentuate phenylpropanoids or monoterpenes. Across multiple surveys, dillapiole often predominates, with myristicin and cineole contributing to both scent and bioactivity profiles (Guerrini et al. 2009).

Antimicrobial activity:

  • In vitro studies demonstrate inhibitory effects against bacteria and fungi implicated in dermal and wound infections, supporting its use as a topical antiseptic and styptic. Proposed mechanisms include disruption of microbial membranes, interference with cell wall integrity, and modulation of quorum-sensing pathways; phenylpropanoids and oxygenated monoterpenes are implicated as principal effectors (Guerrini et al. 2009).
  • Synergism with conventional antimicrobials has been observed experimentally, suggesting potential for combined approaches that reduce antibiotic loads, although translational clinical evidence remains limited (Durofil et al. 2021).

Anti-inflammatory and wound-related properties:

  • Inflammation-modulating effects have been reported in association with essential oil fractions, potentially through cyclooxygenase and lipoxygenase pathway interactions. By attenuating local inflammation and microbial burden concurrently, topical preparations may promote cleaner wound beds and expedite closure, aligning with field reports of improved healing (Durofil et al. 2021) (Guerrini et al. 2009).

Insecticidal, acaricidal, and antiparasitic activities:

  • Across Piper species, including P. aduncum, essential oils display robust activity against vector mosquitoes, agricultural pests, and mites; activity profiles include contact toxicity, repellency, and oviposition deterrence. These properties have spurred interest in plant-derived pest management strategies that may be locally producible and biodegradable (Pohlit et al. 2006) (Durofil et al. 2021).
  • For P. aduncum specifically, the essential oil has shown promise as a broad-spectrum biopesticide with acaricidal and antiparasitic effects, bolstering its ethnographic use as a leaf rub or smoke to deter biting insects (Durofil et al. 2021).

Safety and standardization:

  • While topical applications are widely reported and culturally validated, internal use warrants caution due to variable chemotypes, differences in essential oil yields, and the bioactivity of phenylpropanoids such as dillapiole and myristicin. Safety profiles for chronic internal use, pregnancy, and pediatrics are insufficiently characterized in clinical literature. Community-informed dosing, preparation, and indications guide traditional use; formal standardization remains a research priority to bridge laboratory findings with real-world phytomedicine (Guerrini et al. 2009) (Durofil et al. 2021).

Traditional Preparation and Use

Collection:

  • Leaves are harvested fresh from wild or semi-cultivated stands and cleaned prior to use. Stems may be taken for propagation; roots are less commonly collected.

Preparation and administration:

  • Poultice: Fresh leaves are chewed or macerated; the paste is applied directly to cuts, abrasions, and insect bites. The astringent, aromatic sap aids hemostasis and provides local antisepsis.
  • Infusion or decoction: Leaves (and occasionally roots) are steeped to yield a wash for cleansing wounds and minor skin infections; cooled decoctions may be used for compresses.
  • Powder: Dried, pulverized leaves can be sprinkled over wounds as a field styptic.
  • Aromatic uses: Insect-repellent properties encourage practices such as rubbing crushed leaves on exposed skin or including fresh leaves in bedding and shelters; smoke fumigation may be employed against biting insects in certain locales (Wikidoc Matico) (Guerrini et al. 2009) (Durofil et al. 2021).

Indications and scope:

  • Primary: first-aid care for bleeding control, wound disinfection, and superficial skin infections.
  • Secondary: adjunctive care in ulcer management and as an astringent where access to allopathic antiseptics is limited. In markets across the Andes, Matico is frequently listed and sold for topical applications consistent with these indications (Macía, Garcia, & Vidaurre 2005).

Ceremonial and integrative roles:

  • Matico is not classed among visionary “teacher plants” yet is often included in the broader healing repertoire, invoked for protection and physical resilience. In some vegetalismo settings, leaf washes or baths may be used alongside dieta practices or in proximity to banisteriopsis-caapi sessions, where cleansing and protective plants provide non-psychoactive support (Wikidoc Matico) (Guerrini et al. 2009).

Practical considerations:

  • Given the variability in essential oil content, traditional practitioners often prefer fresh, aromatic leaves from mature plants and avoid senescent or water-logged tissues.
  • As with any botanical antiseptic, thorough wound irrigation and hygienic application are emphasized to reduce contamination; repeated poulticing is common over the first 24–48 hours following injury.

Conservation and Ethical Considerations

Sustainability and ecological status:

  • In its native range, P. aduncum is abundant and not currently threatened. Its weedy, disturbance-adapted life history buffers against overharvest for medicinal uses. Conversely, in several non-native regions (e.g., Pacific islands), the species exhibits invasive potential, forming dense stands that disrupt local ecologies and complicate watershed management. Responsible stewardship entails attention to biosecurity and localized control outside its native distribution (Wikipedia Piper aduncum).

Cultivation and livelihoods:

  • The plant is easily propagated from seed or stem cuttings and reaches usable leaf biomass quickly with minimal inputs. Integrating Matico into homegardens and agroforestry margins can bolster household first-aid autonomy and reduce pressure on wild stands near settlements.

Ethics, access, and cultural rights:

  • Documentation and commercialization of Matico-derived products should proceed with prior informed consent, equitable benefit-sharing, and explicit acknowledgment of Indigenous and local custodianship. Ethical collaboration frameworks—grounded in transparency and reciprocity—are central to avoid extractive dynamics and safeguard living knowledge systems (Guerrini et al. 2009).
  • Market integration in regional urban centers underscores the importance of quality control and fair trade mechanisms, ensuring that community suppliers are recognized and compensated while maintaining botanical authenticity and safety standards (Macía, Garcia, & Vidaurre 2005).

References

  1. Guerrini, A., et al. (2009). Bioactivities of Piper aduncum L. and its essential oil. Environmental Toxicology and Pharmacology, 27(1), 39–48. https://iris.unife.it/bitstream/11392/529941/1/2009%20Piper.pdf
  2. Durofil, A., et al. (2021). Piper aduncum essential oil: a promising insecticide, acaricide, and antiparasitic. Plants, 10(4), 809. https://pmc.ncbi.nlm.nih.gov/articles/PMC8095093/
  3. Wikipedia. Piper aduncum. https://en.wikipedia.org/wiki/Piper_aduncum
  4. Wikidoc. Matico. https://www.wikidoc.org/index.php/Matico
  5. South China Morning Post. Forget aloe vera: 2020 ethnobotany is all about Africa’s miracle… https://www.scmp.com/magazines/style/leisure/article/3041392/forget-aloe-vera-2020-ethnobotany-all-about-africas-miracle
  6. Pohlit, A. M., et al. (2006). Plant-derived insecticides: Phytochemistry and activity of essential oils of some Piper species. Phytochemistry Reviews, 5, 123–137. https://doi.org/10.1007/s11101-005-9001-7
  7. Macía, M. J., Garcia, E., & Vidaurre, P. J. (2005). An ethnobotanical survey of medicinal plants commercialized in the markets of La Paz and El Alto, Bolivia. Journal of Ethnopharmacology, 97(2), 337–350. https://doi.org/10.1016/j.jep.2004.11.016
  8. Bussmann, R. W., & Sharon, D. (2006). Traditional medicinal plant use in Northern Peru: tracking two thousand years of healing culture. Journal of Ethnobiology and Ethnomedicine, 2, 47. https://doi.org/10.1186/1746-4269-2-47

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This article is part of the Yaogará Ark Research Archive — an open ethnobotanical repository documenting sacred plants and Indigenous ecological knowledge of the Amazon.

Publisher: Yaogará Research Initiative — Fundación Camino al Sol License: Creative Commons Attribution–ShareAlike 4.0 International (CC BY-SA 4.0) Citation: Yaogará Research Initiative (2025). Piper aduncum (Matico). Yaogará Ark Research Archive. https://ark.yaogara.org/plants/piper-aduncum