pennyroyal
Mentha pulegium · Accepted scientific name
Scientific literature: Very Extensive (882 studies) · ★★★★★
Pennyroyal, scientifically known as Mentha pulegium, is an aromatic perennial herb belonging to the Lamiaceae family. Renowned for its intense, pungent scent, it has historically been utilized in traditional medicine for its antimicrobial and insect-repellent properties. However, caution is essential, as its essential oils can be highly toxic.
- Family
- Lamiaceae
- Native range
- Europe
- Parts used
- Leaf · Stem
- Common names
- European Pennyroyal · Pennyroyal
- Scientific synonyms
- Calamintha Fenzlii · Minthe Pulegia · 80 more
Names and Synonyms
Common Names
- European pennyroyal
- pennyroyal
Scientific Names
Accepted name
Mentha pulegiumSynonyms
- Calamintha fenzlii
- Minthe pulegia
- Pulegium daghestanicum
- Satureja fenzlii
- Mentha pulegium var. exigua
- Micromeria fenzlii
- Mentha tomentella
- Pulegium aromaticum var. album
- Pulegium aromaticum var. erectum
- Pulegium tomentellum
- Mentha hirtiflora
- Mentha pulegium f. sphenoides
- Mentha pulegioides
- Pulegium erectum
- Mentha pulegium f. foetida
- Mentha pulegium f. strongylophylla
- Mentha pulegium f. alba
- Pulegium micranthum
- Mentha pulegium f. macrostylos
- Mentha pulegium f. albiflora
- Pulegium aromaticum
- Mentha gryparia
- Mentha pulegium var. thymoides
- Mentha pulegium f. cephalonia
- Mentha pulegium var. subhirsuta
- Mentha pulegium var. tomentella
- Mentha pulegium subsp. cephalonia
- Mentha pulegium subsp. erinoides
- Mentha pulegium var. cacocea
- Mentha pulegium var. hyperiantha
- Mentha montana
- Mentha pulegium f. brusanensis
- Mentha subtomentella var. microphylla
- Pulegium vulgare
- Mentha numidica
- Mentha pulegium f. anodonta
- Mentha subtomentella var. humillima
- Mentha pulegium f. communis
- Mentha pulegium f. stenobasea
- Mentha gibraltarica
- Mentha pulegium f. setuligera
- Mentha tomentosa var. villosa
- Mentha pulegium f. hellenica
- Mentha pulegium f. cermatisa
- Mentha pulegium var. cotorensis
- Mentha subtomentella
- Mentha pulegium var. microphylla
- Mentha erinoides
- Mentha pulegium var. pubescens
- Mentha pulegium var. subtomentella
- Mentha daghestanica
- Mentha pulegium var. strongylophylla
- Mentha aucheri
- Mentha pulegium var. villosa
- Mentha subtomentella var. ceplaloniae
- Pulegium vulgare f. hirsutum
- Mentha albarracinensis
- Pulegium vulgare f. incanum
- Pulegium vulgare f. linearifolium
- Melissa pulegium
- Pulegium vulgare f. serratum
- Pulegium vulgare f. algeriense
- Mentha pulegium var. eriantha
- Pulegium tomentellum f. erianthum
- Thymus bidentatus
- Pulegium tomentellum f. ninimum
- Mentha pulegium var. prostrata
- Mentha pulegium subsp. tomentosa
- Mentha pulegium subvar. prostrata
- Mentha pulegium var. erecta
- Mentha pulegium subsp. vulgaris
- Mentha pulegium var. gigantea
- Mentha pulegium subsp. gibraltarica
- Mentha pulegium var. vulgaris
- Micromeria maritima
- Pulegium vulgare f. nummulariuoides
- Mentha pulegium var. humifusa
- Mentha pulegium var. hirsuta
- Mentha pulegium var. hirtiflora
- Mentha pulegium var. heterophylla
- Mentha pulegium var. gibraltarica
- Mentha pulegium var. pulegioides
Regional and Traditional Names
Spanish:
- Pulegium vulgare f nummulariuoides
- Pulegium aromaticum
- Pulegium tomentellum f ninimum
- Pulegium erectum
- Poleio
- Pulegium vulgare f hirsutum
- Póleo
- Mentha hirtiflora
- Pulegium tomentellum f erianthum
- Pulegium vulgare
- Poleo real
- Mentha tomentosa var. villosa
- Te del campo
- Micromeria fenzlii
- Mentha subtomentella var humillima
- Mentha subtomentella var. microphylla
- Poleo
- Menta poleo
- poleo
German:
- Polei-Minze
- Polei
- Poleiminze
- Poleiminze
- Polei-Minze
- Flohkraut
French:
- Menthe pouliot
- Pennyroyal
- Flio
- menthe pouliot
- menthe pouliot
- pouliot
- Menthe pouillot
Sources: Wikidata, Catalogue of Life
Taxonomical Classification
This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Lamiales and family Lamiaceae, it is classified under the genus Mentha.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Mentha |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
This plant exhibits a widespread presence across several key regions of the European continent. In Northern Europe, it can be found growing throughout Great Britain and Ireland. Its distribution continues into Middle Europe, where it is established in Austria. The species is also documented within the borders of Belgium. Finally, its geographical range extends through the territories of Czechia and Slovakia.
| Region | Area |
|---|---|
| Northern Europe | Great Britain |
| Northern Europe | Ireland |
| Middle Europe | Austria |
| Middle Europe | Belgium |
| Middle Europe | Czechia-Slovakia |
| Middle Europe | Germany |
| Middle Europe | Hungary |
| Middle Europe | Netherlands |
| Middle Europe | Poland |
| Middle Europe | Switzerland |
Sources: The World Checklist of Vascular Plants (WCVP)
Botanical Identification
Ecology
The ecology of Mentha pulegium is characterized by a broad adaptability to various environments, ranging from sea level up to a maximum elevation of 2900 m AMSL. It is frequently found in anthropogenic areas (Área Antrópica), where human activities and land use influence its distribution and growth patterns. This expansive elevational range, spanning from 0 m AMSL to 2900 m AMSL, allows the species to inhabit diverse climatic zones and topographical gradients.
- Elevational range max:
- 2900 m AMSL
- Elevational range min:
- 0 m AMSL
- Habitat :
- Área Antrópica
Genetics
The genetics of Mentha pulegium are characterized by a complex and highly variable karyotypic structure, reflecting the evolutionary history of polyploidy within the Lamiaceae family. A defining feature of its genomic landscape is the significant fluctuation in chromosome numbers observed across different populations and accessions. Specifically, the chromosome number is not fixed but can manifest in various states, including 10, 20, 30, 40, 42, and 46. This wide range of chromosomal counts suggests that the species undergoes frequent polyploidization events and genome doubling, which contribute to its genetic diversity and adaptability. Such chromosomal plasticity is a hallmark of the genus Mentha, where varying ploidy levels influence the plant's morphological traits and its ability to thrive in diverse ecological niches.
- Chromosome number :
- 10, 20, 30, 40, 42, 46
Life history
The life history of Mentha pulegium is characterized by its status as a perennial plant, allowing it to persist through multiple growing seasons. As a hemicryptophyte, its regenerative buds are located at the soil surface, protected by leaf litter or soil during unfavorable conditions. This species exhibits a deciduous nature, shedding its foliage as it transitions through its seasonal cycles.
- Deciduousness :
- deciduous
- Life form :
- hemicryptophyte
- Lifecycle :
- perennial
Morphology
The morphology of Mentha pulgeium is characterized by its growth form as a non-woody herb and specifically a forb. It functions as an independent organism, lacking any parasitic tendencies, and is a terrestrial species rather than an aquatic or epiphytic one. The plant is self-supporting, exhibiting an ascending shoot orientation without the need for climbing structures like lianas or vines. In terms of dimensions, the plant height typically ranges from a minimum of 0.1 m to a maximum of 0.7 m, with an average plant height of approximately 0.175 m. Furthermore, the shoot length of the specimen varies between a minimum of 15 cm and a maximum of 30 cm.
- Aquatic :
- terrestrial
- Climber :
- self-supporting
- Epiphyte :
- terrestrial
- Growth form :
- herb
- Growth form :
- forb
- Parasite :
- independent
- Plant height max:
- 0.7 m
- Plant height mean:
- 0.175 m
- Plant height min:
- 0.1 m
- Shoot length max:
- 30 cm
- Shoot length min:
- 15 cm
- Shoot orientation :
- ascending
- Woodiness :
- non-woody
Physiology
The physiology of Mentha pulgeium is characterized by a C3 photosynthetic pathway, indicating a carbon fixation process optimized for temperate environments. The plant is non-carnivorous and does not function as a nitrogen fixer, relying instead on soil nutrient uptake. Its leaf morphology plays a critical role in its physiological efficiency, featuring an elliptic form with a mean leaf size of approximately 1.9827 cm². The dimensions of the leaves vary significantly, with lengths ranging from a minimum of 0.8 cm to a maximum of 3 cm, while the width fluctuates between 0.04 cm and 1.5 cm, maintaining a mean width of 0.7 cm. Furthermore, the plant exhibits a mean Specific Leaf Area (SLA) of 311.3 cm²/g, reflecting its leaf mass distribution and its adaptive strategy for light interception and gas exchange.
- Carnivory :
- non-carnivorous
- Leaf form :
- elliptic
- Leaf length max:
- 3 cm
- Leaf length min:
- 0.8 cm
- Leaf size mean:
- 1.9827 cm²
- Leaf width max:
- 1.5 cm
- Leaf width mean:
- 0.7 cm
- Leaf width min:
- 0.04 cm
- Nitrogen fixer :
- no
- Photosynthetic pathway :
- C3
- Specific Leaf Area (SLA) mean:
- 311.3 cm²/g
Reproduction
The reproduction of Mentha puligena is characterized by a sexual process through bisexual flowers, with asexual reproduction being absent. The flowering period typically begins in August and concludes in September, producing pink-colored flowers that range in length from 0.5 cm to 0.6 cm. These flowers rely on biotic pollination, specifically utilizing insects such as bees to facilitate fertilization, as self-fertilization is noted to be absent. Following pollination, the plant develops dry, indehiscent fruits known as achenes. These fruits are quite small, with a mean length of 0.1 cm (ranging from 0.07 cm to 0.08 cm). Each fruit contains a substantial number of seeds, typically between 101 and 1000. The seeds themselves are minute, maintaining a consistent mean length, width, and volume of 0.5 mm, 0.5 mm, and 0.07 mm³ respectively. The seed mass is extremely low, with a mean of approximately 8.3567e-05 g, ranging from a minimum of 3.1e-05 g to a maximum of 1e-04 g. Dispersal of the seeds is achieved through a hydrochorous syndrome, meaning they are primarily dispersed by water.
- Dehiscence :
- indehiscent
- Dispersal syndrome :
- hydrochorous
- Flower colour :
- pink
- Flower length max:
- 0.6 cm
- Flower length min:
- 0.5 cm
- Flowering time :
- Aug
- Flowering time :
- Sep
- Fruit dryness :
- dry
- Fruit length max:
- 0.08 cm
- Fruit length mean:
- 0.1 cm
- Fruit length min:
- 0.07 cm
- Fruit type :
- achene
- Pollination syndrome :
- insect
- Pollination syndrome :
- bee
- Pollination syndrome :
- biotic
- Reproduction asexual :
- absent
- Reproduction sexual :
- bisexual
- Seed length mean:
- 0.5 mm
- Seed mass max:
- 1e-04 g
- Seed mass mean:
- 8.35666666666667e-05 g
- Seed mass min:
- 3.1e-05 g
- Seed volume max:
- 0.07 mm³
- Seed width mean:
- 0.5 mm
- Seeds_per_fruit :
- 101-1000
- Self fertilization :
- absent
Sources: Global Inventory of Floras and Traits (GIFT)
Plant Parts
Mentha pulegium has 3 reported plant parts identified across 6 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf, stem, flower.
| Plant part | Supporting sources | Consensus |
|---|---|---|
| Leaf | 3 supporting sources | ★★☆☆☆ |
| Stem | 2 supporting sources | ★☆☆☆☆ |
| Flower | 1 supporting sources | ★☆☆☆☆ |
Leaf
- Journal of ethnopharmacology
- Endocrine, metabolic & immune disorders drug targets
- Advanced pharmaceutical bulletin
Stem
- Endocrine, metabolic & immune disorders drug targets
- Journal of natural products
Flower
- Advanced pharmaceutical bulletin
Chemicals
Mentha pulegium has 179 reported phytochemicals identified across 6 scientific publications and several other databases. The most consistently reported chemicals include Pulegone, Flavonoids, CARVACROL, MENTHOL, MENTHONE.
| Chemical | Supporting sources | Consensus |
|---|---|---|
| Pulegone | 9 supporting sources | ★★★★☆ |
| Flavonoids | 4 supporting sources | ★★☆☆☆ |
| CARVACROL | 3 supporting sources | ★★☆☆☆ |
| MENTHOL | 3 supporting sources | ★★☆☆☆ |
| MENTHONE | 3 supporting sources | ★★☆☆☆ |
| Piperitenone | 3 supporting sources | ★★☆☆☆ |
| hesperidin | 3 supporting sources | ★★☆☆☆ |
| rosmarinic acid | 3 supporting sources | ★★☆☆☆ |
| 1,8-Cineole | 2 supporting sources | ★☆☆☆☆ |
| CARVONE | 2 supporting sources | ★☆☆☆☆ |
Pulegone
- Dr. Duke
- Molecules (Basel, Switzerland)
- Cellular and molecular biology (Noisy-le-Grand, France)
- Chemistry & biodiversity
- Archives of biochemistry and biophysics
View 4 additional sources
- International journal of microbiology
- Journal of the science of food and agriculture
- TheScientificWorldJournal
- Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
Flavonoids
- Phytochemical analysis : PCA
- Endocrine, metabolic & immune disorders drug targets
- Molecules (Basel, Switzerland)
- Natural product communications
CARVACROL
- Dr. Duke
- Current molecular pharmacology
- Biofouling
MENTHOL
- Dr. Duke
- Cellular and molecular biology (Noisy-le-Grand, France)
- Endocrine, metabolic & immune disorders drug targets
MENTHONE
- Dr. Duke
- Cellular and molecular biology (Noisy-le-Grand, France)
- Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
Piperitenone
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
- Chemistry & biodiversity
hesperidin
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
- Molecules (Basel, Switzerland)
rosmarinic acid
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
- Frontiers in pharmacology
1,8-Cineole
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
CARVONE
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
Activities
Mentha pulegium has 517 reported activities identified across 6 scientific publications and several other databases. The most consistently reported activities include Antioxidant, Antibacterial, Cytotoxic, Anticancer, Anticonvulsant.
| Activity | Supporting sources | Consensus |
|---|---|---|
| Antioxidant | 8 supporting sources | ★★★★☆ |
| Antibacterial | 4 supporting sources | ★★☆☆☆ |
| Cytotoxic | 3 supporting sources | ★★☆☆☆ |
| Anticancer | 2 supporting sources | ★☆☆☆☆ |
| Anticonvulsant | 2 supporting sources | ★☆☆☆☆ |
| Antidiabetic | 2 supporting sources | ★☆☆☆☆ |
| Antifungal | 2 supporting sources | ★☆☆☆☆ |
| Antihypertensive | 2 supporting sources | ★☆☆☆☆ |
| Antimicrobial | 2 supporting sources | ★☆☆☆☆ |
| Antiproliferative | 2 supporting sources | ★☆☆☆☆ |
Antioxidant
- Dr. Duke
- Molecules (Basel, Switzerland)
- Journal of ovarian research
- Endocrine, metabolic & immune disorders drug targets
- Scientific reports
View 3 additional sources
- Journal of the science of food and agriculture
- Natural product research
- Natural product communications
Antibacterial
- Dr. Duke
- Molecules (Basel, Switzerland)
- Scientific reports
- Plants (Basel, Switzerland)
Cytotoxic
- Dr. Duke
- Molecules (Basel, Switzerland)
- Bioorganic & medicinal chemistry
Anticancer
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
Anticonvulsant
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
Antidiabetic
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
Antifungal
- Endocrine, metabolic & immune disorders drug targets
- Scientific reports
Antihypertensive
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
Antimicrobial
- Endocrine, metabolic & immune disorders drug targets
- Frontiers in microbiology
Antiproliferative
- Dr. Duke
- Endocrine, metabolic & immune disorders drug targets
Medicinal Uses
Mentha pulegium has 17 reported medicinal uses identified across 6 scientific publications and several other databases. The most consistently reported uses include Alzheimer disease, belching, constipation, cough, fever.
Most Reported Uses
| Use | Sources | Consensus |
|---|---|---|
| Alzheimer disease | Chemistry & biodiversity (and other 1 sources) | ★☆☆☆☆ |
| belching | Journal of ethnopharmacology (and other 1 sources) | ★☆☆☆☆ |
| constipation | Endocrine, metabolic & immune disorders drug targets (and other 1 sources) | ★☆☆☆☆ |
| cough | Endocrine, metabolic & immune disorders drug targets (and other 1 sources) | ★☆☆☆☆ |
| fever | Endocrine, metabolic & immune disorders drug targets (and other 1 sources) | ★☆☆☆☆ |
| hiccups | Endocrine, metabolic & immune disorders drug targets (and other 1 sources) | ★☆☆☆☆ |
| hypertension | Endocrine, metabolic & immune disorders drug targets (and other 1 sources) | ★☆☆☆☆ |
| immune system | Avicenna journal of phytomedicine (and other 1 sources) | ★☆☆☆☆ |
| immunity | Animal biotechnology (and other 1 sources) | ★☆☆☆☆ |
| infertility | Endocrine, metabolic & immune disorders drug targets (and other 1 sources) | ★☆☆☆☆ |
Preparations
| Preparations | Sources | Consensus |
|---|---|---|
| essential oil | Anais da Academia Brasileira de Ciencias (and other 3 sources) | ★★☆☆☆ |
| essential oils | Natural product communications (and other 3 sources) | ★★☆☆☆ |
| EOs | Letters in applied microbiology (and other 1 sources) | ★☆☆☆☆ |
| Mentha pulegium extracts | Scientific reports (and other 1 sources) | ★☆☆☆☆ |
| distillation (D) | Journal of the science of food and agriculture (and other 1 sources) | ★☆☆☆☆ |
| ethanolic and aqueous extracts | Frontiers in microbiology (and other 1 sources) | ★☆☆☆☆ |
| ethanolic extract | Molecules (Basel, Switzerland) (and other 1 sources) | ★☆☆☆☆ |
| herbaceous distillates | Communications in agricultural and applied biological sciences (and other 1 sources) | ★☆☆☆☆ |
| herbal infusions | Mutation research (and other 1 sources) | ★☆☆☆☆ |
| hydro-alcoholic (HI) and aqueous (AI) infusions | Journal of the science of food and agriculture (and other 1 sources) | ★☆☆☆☆ |