Prunella vulgaris
What's the taxonomical classification of Prunella vulgaris?
Prunella vulgaris belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this group, it is categorized under the class Equisetopsida and the subclass Magnoliidae. Following its taxonomic lineage further, it falls under the order Lamiales and the family Lamiaceae. Finally, the plant is identified by its specific genus, Prunella, and its species name, vulgaris.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Prunella |
| Species | vulgaris |
What are the morphological characteristics of this plant?
Prunella vulgaris has square, creeping stems that produce opposite, ovate-shaped leaves with serrated margins and a hairy texture. These leaves are typically dark green on top and lighter on the underside, often growing in whorls along the stem. The plant features a terminal spike of small, hooded, purple or bluish flowers that emerge from a protective bract. Each flower is supported by a calyx that remains persistent after blooming. The root system is rhizomatous, allowing the plant to spread horizontally across the ground.
What is the geographical distribution of this plant?
This plant is native to Europe, western Asia, and northern Africa, though it has become widely naturalized across much of North America. It thrives in a variety of temperate climates ranging from moist meadows to disturbed woodland edges. In its expanded range, it can often be found in gardens, roadsides, and damp pastures. The species is particularly successful in regions with consistent moisture and moderate temperatures. Its ability to spread via runners allows it to colonize new areas across many different continents.
How is this plant cultivated?
This plant, commonly known as self-heal, thrives in moist, well-drained soils and requires full sun to partial shade to grow effectively.
It spreads readily through underground rhizomes to form dense, low-growing mats across a garden area. Regular moisture is essential during the establishment phase, though the species is relatively resilient once its root system is mature. While it can be invasive in certain environments, it can be managed by limiting its spread through strategic planting or frequent pruning.
Once established, it produces small purple flowers that attract pollinators throughout the summer months.
What parts of this plant are used medicinally?
This plant Prunellas vulgaris is used medicinally through its aerial parts, which include the flowers, leaves, stems, and roots. The flowers and leaves are frequently prepared as teas or tinctures to treat respiratory issues and inflammation. The stem is also harvested alongside the foliage for its astringent properties. While less common, the root can be utilized in traditional preparations to support digestive health. Together, these components provide a versatile range of therapeutic applications.
According to a study published by "Journal of ethnopharmacology", the aerial parts of Prunella vulgaris L. are used in an infusion for abdominal pain and as an expectorant. Additionally, a decoction prepared from all parts of the plant is utilized internally or externally for wound healing. To study these effects, the aerial parts were extracted using 80% methanol. From the ethyl acetate sub-extract, 6 compounds were isolated using various chromatographic methods. These compounds, which include ursolic acid, chlorogenic acid, and rosmarinic acid, were identified through spectroscopic techniques such as UV, IR, 13C-NMR, 1H-NMR, 2D-NMR, and MS.
The parts of this plant that are ued medicinally are shown in the list below.
- aerial parts
- flower
- leaf
- root
- stem
What traditional systems uses this plant?
This plant, known as self-heal or heal-all, has been utilized across various historical medicinal practices to treat wounds, skin inflammations, and respiratory ailments. In the Welsh herbal tradition, it was specifically valued for its ability to soothe sore throats and aid in the healing of cuts. European folk medicine frequently employed the plant as an astringent to stem bleeding and reduce swelling. Various cultures also prepared infusions from its leaves to address digestive issues and feverish conditions. These long-standing uses reflect the plant's significant role in historical community healthcare.
According to a study published by "Frontiers in pharmacology", Prunella vulgaris L. is one of 6 plants that could be hypothetically attributed to the Celtic herbal tradition. This plant is linked to the Welsh herbal manuscript Meddygon Myddfai, which contains recipes 1-188. The herbal traditions of the R1b proto-Celtic tribes, which migrated during the Bronze Age, were occasionally recorded in classical Greco-Roman texts. These traditions preserved unique signatures, such as the increased use of whey and ashes for formulating herbal remedies. The Celtic linguistic community dominated large spans of Central and Western Europe between 800 BC and 500 AD.
The hystorical systems that uses this plant are shown in the list below.
- Welsh herbal tradition
What are the pharmacological activities of Prunella vulgaris?
This plant has anti-inflammatory, antimicrobial, antioxidant, antipyretic, and wound healing pharmacological activities. Its bioactive compounds work to reduce swelling and inhibit the growth of various pathogenic microorganisms. The presence of specific phytochemicals also helps neutralize free radicals to prevent oxidative stress in cells. Furthermore, the plant can effectively lower body temperatures during fever and accelerate the regeneration of skin tissues. These diverse medicinal properties make Prunnella vulgaris a significant subject for natural therapeutic research.
According to a study published by "Chemistry & biodiversity", Prunella vulgaris is a medicinal and edible plant traditionally recognized for its ability to clear heat and relieve liver fire. The study investigated the metabolic composition, antioxidant, and anti-inflammatory activities of the plant across four distinct regions. Multivariate analysis revealed a significant difference in the metabolic profile among samples, with the Xingren sample displaying preferred antioxidant and anti-inflammatory activities. Network pharmacology and molecular docking confirmed the high binding affinity of the main active ingredient, isothankunic acid, and its targets. Additionally, naringenin 7-O-(2'',6''-di-O-α-rhamnopyranosyl)-β-glucopyranoside, okanin 4'-gentiobioside, 2''-(6-acetylglucosyl)astragalin, and dihydroscoparin may serve as active markers of antioxidant activity. These results validate the traditional anti-inflammatory use of P. vulgaris and support its potential as a source of natural food antioxidants.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- antioxidant
- antimicrobial
- antiviral
- wound healing
What medicinal compounds this plant contains?
This plant contains the medicinal compounds rosmarinic acid, prunellate A, vulgarisin A, abietoquinone A, and abietoquinone B. These diverse chemical constituents contribute to the various therapeutic properties attributed to the species. Rosmarinic acid is a well-known polyphenol that provides significant antioxidant and anti-inflammatory effects. The diterpenoid quinones, specifically abietoquinone A and abietoquinone B, are often studied for their biological activities. Additionally, unique compounds like prunellate A and vulgarisin A help define the specific phytochemical profile of the plant.
According to a study published by "Current drug discovery technologies", Prunella vulgaris contains varied and copious metabolites including triterpenoids, phenolic acid, sterols, carbohydrates, coumarins, fatty acids, and volatile oils. Possible leads for further development include specific compounds such as betulinic acid, oleanolic acid, ursolic acid, umbelliferone, scopoletin, esculetin, luteolin, homoorientin, Rosmarinic acid, and cinaroside. These constituents provide a wide range of biological activities such as anti-microbial, immunosuppressive, anti-cancer, cardio-protective, anti-allergic, and anti-inflammatory activities. The plant is considered a medicinal plant of immense importance due to this diversity in its pharmacological spectrum.
The primary medicinal compounds of this plant are shown in the list below.
- Rosmarinic acid
- Prunellate A
- Vulgarisin A
- abietoquinone A
- abietoquinone B
What health conditions is this plant used for?
This plant is used for treating inflammation, skin urticaria, and various types of infections including viral infections and bacterial infections. Its natural properties help to reduce swelling and soothe irritated skin surfaces. People often apply the plant to calm the itching and redness associated with urticaria. It also serves as a traditional remedy to combat pathogens responsible for different bacterial and viral infections. By addressing these diverse conditions, the plant acts as a versatile medicinal resource for both internal and external ailments.
According to a study published by "Phytotherapy research : PTR", the organic fraction of Prunellla vulgaris, which contains 25.7% w/w of rosmarinic acid, exhibits various biological activities. This extract shows scavenging activity on the diphenylpicrylhydrazyl radical and inhibits in vitro human LDL Cu(II)-mediated oxidation. It provides protection for rat mitochondria and rat hepatocytes when they are exposed to tert-butyl hydroperoxide or to Cu(II) and Fe(III) ions. Furthermore, the organic fraction shows potential to inhibit rat erythrocyte haemolysis and reduces LTB(4) production in bovine PMNL via the 5-lipoxygenase pathway. The plant extract also demonstrates antiproliferative effects against HaCaT cells and mouse epidermal fibroblasts along with moderate antimicrobial activity on gram-positive bacteria.
The main health conditions this plant is used for are shown in the list below.
- bacterial infections
- inflammation
- infection
- viral infections
- wound healing
What are the herbal preparations of this plant?
This plant is used to create various medicinal preparations including hydroalcoholic extracts, MeOH extract, aqueous solution, decoction, and infusion. Scientists often utilize MeOH extract to isolate specific bioactive compounds for pharmacological study. For traditional therapeutic applications, an aqueous solution can be prepared through different methods of water extraction. A decoction involves boiling the tougher plant parts in water to release concentrated constituents. Conversely, an infusion is made by steeping the softer leaves in hot water to preserve delicate properties.
According to a study published by "Pharmaceutica acta Helvetiae", hydroalcholiic extracts from Prunella vulgaris L. have shown significant antioxidative activities by free radical scavenger effect on DPPH. This antioxidative activity was partly in relation to the rosmarinic acid content. The major hydroxycinnamic compound was quantitatively determinated by HPLC and was present in large amount. The content in Prunella vulgaris L. spikes averages 6.1% based on dry weight.
The main herbal preparations of this plant are shown in the list below.
- Hydroalcoholic extracts
- MeOH extract
- aqueous solution
- decoction
- infusion
What side effects this plant can have?
This plant can cause no documented side effects in humans when used appropriately. There are currently no clinical studies or reports suggesting specific toxic reactions or adverse interactions with medications. While it is generally considered safe, individuals with known allergies to members of the Lamiaceae family should exercise caution. Some people may experience mild skin irritation if the plant comes into direct contact with sensitive areas. Always consult a healthcare professional before incorporating any new botanical species into a wellness routine.
The main side effects this plant can have are shown in the list below.
- None documented
What herbs are paired with Prunella vulgaris?
This plant, commonly known as self-heal, pairs effectively with lemon balm, peppermint, and echinacea to enhance its restorative properties for respiratory and skin ailments.
When used in tea blends, its mild bitterness is balanced by the sweetness of licorice root or the bright notes of chamomile. For topical applications, combining it with calendula or plantain creates a potent salve for soothing minor irritations. These combinations often aim to harmonize its astringent qualities with more soothing or antimicrobial herbs.
Selecting the right companion depends on whether the goal is digestive support or immune boosting.