Hermetica Superfood Encyclopedia
The Short Answer
Matipo leaves contain flavonoids including rutin, the quinone embelin, triterpene saponins, tannins, and glucuronic acid, which together confer antioxidant, antimicrobial, and vascular-supportive activities through free radical scavenging and enzyme inhibitory pathways. Preliminary ethnobotanical records and phytochemical screening support its traditional Māori use as a cold and respiratory remedy, though no controlled clinical trials have measured effect sizes or therapeutic outcomes in human populations.
CategoryHerb
GroupPacific Islands
Evidence LevelPreliminary
Primary Keywordmatipo herb benefits
Matipo — botanical close-up
Health Benefits
**Upper Respiratory Symptom Relief**
Leaf decoctions have been used by Māori to address symptoms of colds and upper respiratory infections; constituent flavonoids such as rutin may reduce mucosal inflammation via inhibition of pro-inflammatory mediators, though this mechanism has not been confirmed specifically in M. australis.
**Oral and Dental Pain Relief**
Traditional Māori applications included boiling leaves and applying preparations topically or locally for toothache relief; tannins present in the leaf likely contribute astringent and mild analgesic effects at mucosal surfaces through protein precipitation and sensory nerve modulation.
**Cardiovascular and Vascular Support**
Bark and leaf juice preparations were consumed to 'cleanse the veins' in Māori ethnomedicine; rutin, a flavonoid glycoside, is known to strengthen capillary walls, inhibit platelet aggregation, and reduce vascular permeability in studies on related plant sources.
**Gastrointestinal Regularity**
Bark and leaf juice preparations were also traditionally used to address constipation; saponins present in Myrsine species are known to stimulate intestinal motility and influence intestinal fluid secretion, potentially contributing a mild laxative effect.
**Antimicrobial Activity**
Extracts of related Myrsine species demonstrate antimicrobial activity against gram-positive and gram-negative bacteria; embelin, a benzoquinone derivative identified in M. australis, has documented anthelmintic and antimicrobial properties in other botanical contexts.
**Neuroprotective Potential**
Enzyme inhibition studies on Myrsine species extracts report 58–71% inhibition of acetylcholinesterase and butyrylcholinesterase, enzymes implicated in Alzheimer's disease progression; this preliminary finding suggests bioactive constituents in the genus may modulate cholinergic neurotransmission, though this has not been confirmed for M. australis specifically.
**Anti-inflammatory and Antioxidant Effects**
Flavonoids and tannins in the leaf fraction contribute to antioxidant capacity via free radical scavenging and metal chelation; glucuronic acid conjugates may support hepatic detoxification pathways and reduce systemic oxidative load, consistent with patterns observed in related Myrsinaceae members.
Origin & History
Natural habitat
Myrsine australis, commonly called red matipo or māpou, is a small to medium shrub endemic to New Zealand, distributed across both the North and South Islands in lowland to montane forest margins, shrublands, and riparian zones. It thrives in well-drained to moist soils under partial shade to full sun and is notably frost-tolerant, making it a widespread component of native New Zealand bush. The species is not commercially cultivated for medicinal purposes but occurs naturally throughout the country and is frequently used in ecological restoration and revegetation projects.
“Myrsine australis holds a recognized place in Māori rongoā (traditional healing), where the leaves were boiled to prepare remedies for colds and the bark and leaf juices were consumed to address circulatory complaints, constipation, and to 'cleanse the blood.' The plant's Māori name māpou reflects its cultural familiarity, and it was also used by early European settlers in New Zealand who adopted some indigenous plant remedies. Toothache relief through topical leaf application represents another documented traditional use, placing the plant within a broader category of astringent and analgesic botanicals in Polynesian and Māori healing traditions. Beyond medicine, M. australis has been valued ecologically as a nurse plant in native forest regeneration, and its cultural significance extends to its role in the physical landscape of New Zealand rather than being confined solely to medicinal traditions.”Traditional Medicine
Scientific Research
Research specifically on Myrsine australis is extremely limited, with no published controlled clinical trials, pharmacokinetic studies, or randomized studies identified in the peer-reviewed literature as of the current knowledge base. Available evidence derives primarily from ethnobotanical surveys documenting traditional Māori uses, phytochemical screening studies that have identified compound classes without quantifying concentrations, and extrapolation from studies on closely related species such as Myrsine africana. One study on related Myrsine extracts reported cholinesterase inhibition of 58–71%, representing preliminary in vitro bioactivity data rather than clinical evidence of therapeutic efficacy. The overall evidence base for M. australis must be rated as very low quality; extrapolation from M. africana phytochemistry and related species pharmacology provides plausible mechanistic hypotheses but cannot substitute for species-specific preclinical and clinical investigation.
Preparation & Dosage
Traditional preparation
**Fresh Leaf Liquid Extract (1
3–9 mL daily, divided into 2–3 doses; this is the primary phytotherapy form cited in New Zealand herbal practice, though no clinical dose-finding studies exist to validate this range
2)**: .
**Dried Leaf Decoction**
5 g of fresh leaf equivalent daily, prepared by simmering leaves in water for 10–15 minutes; traditionally consumed as a warm tea for cold symptoms
Approximately 1.5–4..
**Traditional Māori Decoction**
Leaves boiled in water and the liquid drunk or applied topically; bark and leaf juice also consumed directly for cardiovascular and digestive purposes without standardized volume.
**Topical Poultice**
Bruised or boiled leaves applied directly to the affected area for toothache or skin conditions; no standardized preparation protocol is documented.
**Standardization**
No commercial standardization to specific marker compounds (e.g., rutin, embelin) has been established for M. australis products; concentrations of bioactives in finished preparations are unknown.
**Timing**
Traditional use does not specify timing relative to meals; general herbal practice suggests administration with food to reduce potential gastric irritation from tannins and saponins.
Nutritional Profile
Myrsine australis is not consumed as a food plant, and no formal nutritional analysis of macronutrient or micronutrient content has been published for its leaves or other parts. Phytochemical screening identifies flavonoids including rutin, the benzoquinone embelin, triterpene saponins, tannins (estimated at approximately 7.53 mg gallic acid equivalents per 100 g based on related M. africana data), alkaloids (estimated at approximately 8.89 mg per 100 g by analogy), and glucuronic acid conjugates, though these figures are extrapolated from related species and not confirmed analytically for M. australis. Saponin content in M. africana fruit extracts has been measured at approximately 140 mg per gram of methanol extract, suggesting potentially significant saponin levels in M. australis, though direct quantification is absent. Bioavailability of constituent compounds such as rutin is known to be influenced by gut microbiota metabolism to quercetin and other aglycones in other plant sources, but no bioavailability studies have been conducted for M. australis preparations.
How It Works
Mechanism of Action
Rutin, a flavonol-3-rutinoside present in matipo leaves, exerts vascular protective effects by inhibiting NADPH oxidase, scavenging superoxide radicals, and downregulating NF-κB-mediated inflammatory signaling, thereby reducing endothelial permeability and platelet hyperactivation. Embelin, a 2,5-dihydroxy-3-undecyl-1,4-benzoquinone, inhibits the X-linked inhibitor of apoptosis protein (XIAP) and has demonstrated interference with mitochondrial apoptotic pathways in analogous species, while also showing anthelmintic effects through disruption of energy metabolism in parasites. Tannins in M. australis act as reversible protein precipitants at mucosal surfaces, reducing local inflammation and exhibiting antimicrobial activity by binding bacterial membrane proteins and inhibiting microbial adhesion. Preliminary cholinesterase inhibition data from Myrsine genus extracts suggest that unidentified polyphenolic or quinone constituents may competitively inhibit acetylcholinesterase and butyrylcholinesterase, potentially elevating synaptic acetylcholine levels, though the specific inhibitory compounds in M. australis have not been isolated or characterized.
Clinical Evidence
No clinical trials have been conducted on Myrsine australis as a defined medicinal ingredient, and no human intervention studies measuring therapeutic endpoints have been published. The totality of available evidence consists of ethnobotanical documentation, phytochemical class identification, and indirect evidence from chemically related species within the Myrsinaceae family. Effect sizes, optimal dosing regimens, bioavailability parameters, and comparative efficacy versus standard treatments are entirely undetermined. Confidence in any specific therapeutic outcome for M. australis is therefore very low, and all attributed benefits remain traditional claims requiring formal validation.
Safety & Interactions
No comprehensive toxicological studies, formal adverse event reporting, or safety pharmacology data have been published specifically for Myrsine australis leaf preparations, leaving the safety profile substantially undetermined beyond anecdotal traditional use. The astringent tannin content suggests that high-dose or prolonged consumption may impair gastrointestinal absorption of minerals and proteins, and could cause gastric irritation or nausea; caution at doses exceeding traditional ranges is therefore advisable. No specific drug interactions have been documented, but the presence of rutin and other flavonoids raises theoretical concerns about additive effects with anticoagulant or antiplatelet medications such as warfarin, aspirin, and clopidogrel, as well as potential interference with cytochrome P450 enzyme activity, which could alter metabolism of co-administered drugs. Pregnancy and lactation safety has not been studied; given the lack of safety data and the presence of biologically active quinones (embelin) and saponins, use during pregnancy or breastfeeding is not recommended, and individuals with known hypersensitivity to plants in the Myrsinaceae family should exercise caution.
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Also Known As
Myrsine australisred matipomāpoumapouRapanea australis
Frequently Asked Questions
What is matipo used for in traditional Māori medicine?
In traditional Māori rongoā, matipo leaves were boiled to prepare remedies for cold symptoms including congestion and sore throat, while bark and leaf juice was consumed to address circulatory complaints and constipation. Topical applications of boiled or bruised leaves were also used for toothache relief. These uses have not been validated by clinical trials but are supported by ethnobotanical documentation and the known properties of identified phytochemicals such as rutin and tannins.
What are the active compounds in Myrsine australis?
Phytochemical screening of Myrsine australis has identified flavonoids including the flavonol glycoside rutin, the benzoquinone embelin, triterpene saponins, condensed tannins, alkaloids, and glucuronic acid conjugates. Embelin is of particular pharmacological interest due to its documented anthelmintic, antimicrobial, and pro-apoptotic properties in other botanical contexts. Specific concentrations of these compounds in M. australis leaves have not been quantified in published analytical studies, limiting precise dosing guidance.
Is there scientific evidence supporting matipo for colds or respiratory infections?
No controlled clinical trials have evaluated Myrsine australis for cold or respiratory infection outcomes in human subjects. Evidence is limited to traditional ethnobotanical records of Māori use and mechanistic plausibility derived from the anti-inflammatory and antioxidant properties of identified constituents like rutin, which inhibits NF-κB signaling in other plant systems. The current evidence base is rated as traditional use only, and matipo cannot be recommended as a clinically validated cold remedy.
What is the recommended dosage for matipo leaf extract?
New Zealand herbal practice references a dose of 3–9 mL of a 1:2 fresh leaf liquid extract daily, or approximately 1.5–4.5 g of fresh leaf equivalent per day, typically divided into 2–3 doses. These dosing guidelines are derived from traditional herbal compendiums and practitioner convention rather than dose-finding clinical trials, so the optimal or maximum safe dose has not been experimentally established. Preparations are primarily consumed as warm decoctions or liquid extracts rather than standardized capsules or tablets.
Are there any safety concerns or drug interactions with matipo?
No formal toxicological studies have been conducted on Myrsine australis, and its safety profile in humans is largely undetermined beyond historical traditional use without documented adverse events. Theoretically, high tannin content could impair mineral absorption and cause gastric irritation at elevated doses, and the flavonoid rutin may have additive effects with anticoagulant drugs such as warfarin or antiplatelet agents like aspirin. Use during pregnancy and breastfeeding is not recommended due to the presence of biologically active quinones and saponins and the complete absence of reproductive safety data.
What forms of matipo are available, and which is most commonly used?
Matipo is primarily available as leaf decoctions (tea), dried leaf preparations, and leaf extracts, with decoctions being the most traditional form used in Māori medicine. Leaf extracts offer concentrated levels of active compounds like flavonoids and rutin, potentially providing more consistent dosing than whole leaf preparations. The choice between forms may depend on intended use—decoctions are traditionally favored for respiratory support, while extracts may offer greater bioavailability for some constituents.
Who should avoid matipo, and are there specific populations that should not use it?
Pregnant and nursing women should consult a healthcare provider before using matipo, as safety data in these populations is limited. Individuals with allergies to plants in the Myrsine family or those taking blood-thinning medications should exercise caution, as some flavonoids may have mild anticoagulant properties. Children and the elderly should use matipo only under professional guidance to ensure appropriate dosing.
How does matipo compare to other traditional herbs used for upper respiratory support?
Matipo (Myrsine australis) is a native New Zealand herb with a long history in Māori medicine, whereas other respiratory herbs like echinacea or elderberry have more extensive modern clinical research. Like many traditional respiratory support herbs, matipo's flavonoid content suggests anti-inflammatory potential, though direct comparative studies between matipo and other herbs are lacking. The choice between matipo and other herbs may depend on availability, cultural context, and individual tolerance rather than on robust clinical evidence of superiority.
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