Salvia plebeia

What's the taxonomical classification of Salvia plebeia?

Salvia plebeia belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it is categorized under the class Equisetopsida and the subclass Magnoliidae. The plant is further organized into the order Lamiales and the family Lamiaceae. Finally, its taxonomic identity is completed at the genus level as Salvia and at the species level as plebeia.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Lamiales
Family Lamiaceae
Genus Salvia
Species plebeia
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Salvias plebeia has upright, square-shaped stems that reach heights of approximately 30 to 60 centimeters and are covered in fine, spreading hairs. The leaves are opposite, ovate to lanceolate in shape, and possess a wrinkled or rugose texture with serrated margins. Its inflorescence consists of dense, terminal racemes that feature small, two-lipped flowers typically colored in shades of blue, violet, or pale purple. These floral structures are supported by bracts that often exhibit a purplish tint, adding complexity to the plant's visual profile. The overall architecture of the plant is bushy and compact, making it a resilient perennial in Mediterranean climates.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to the Mediterranean region, spanning across southern Europe, North Africa, and Western Asia. Its natural habitat typically includes rocky slopes, dry scrublands, and open woodlands found throughout these territories. Because it thrives in warm, temperate climates, it is frequently encountered in countries such as Italy, Greece, and Spain. Many gardeners have also introduced the species to other parts of the world where similar Mediterranean-style weather conditions exist. Consequently, its range has expanded beyond its original borders due to intentional cultivation for ornamental purposes.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant thrives in well-drained soil with full sun to partial shade exposure and requires moderate watering once established.

It is a hardy perennial that is best propagated through stem cuttings or division during the spring or autumn months. To ensure healthy growth, provide organic mulch to help retain moisture around the root zone during dry periods. Regular pruning after the flowering season will encourage bushier foliage and prevent the stems from becoming too woody.

This species is particularly valued in landscaping for its ability to tolerate various soil types while providing consistent seasonal interest.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant is used medicinally through its aerial parts, which include the leaves, stems, and flowers. These harvested components contain essential oils and bioactive compounds that provide therapeutic benefits. People often prepare infusions or decoctions from the dried leaves to treat various ailments. The extracts from these upper sections are also applied topically to soothe skin irritations. Utilizing the aerial parts allows for efficient collection of the most potent medicinal elements.

According to a study published by "Journal of ethnopharmacology", the aerial parts of Salvia plebeia are used as a traditional medicine to treat the common cold, flu, cough, hepatitis, and hemorrhoids. Chemical investigation of the methanolic extracts of these aerial parts led to the isolation of 14 compounds, including 2 novel benzoylated monoterpene glycosides named plebeioside A (1) and B (2). The study also identified 12 known compounds, which consist of 4 flavonoids (4-5, 7, 10), 2 sesquiterpenoids (8, 12), 4 phenolics (9-10, 13-14), 1 steroid (6), and 1 triterpenoid (3). Compounds 5, 7, 9, and 11 exhibited potent enzymatic inhibition against H1N1 neuraminiadse with IC50 values ranging from 11.18±1.73 to 19.83±2.28μM. Additionally, 2 flavonoids (5 and 7) and 1 rosmarinic acid methyl ester (9) were found to reduce cytopathic effects of the H1N1 virus.

The parts of this plant that are ued medicinally are shown in the list below.

  • aerial parts
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant has no documented history of use within established traditional medicinal systems or formal ethnobotanical records. While many species within the Salvia genus are known for their cultural significance, Salvia plebeia lacks specific mentions in historical pharmacopeias. There is a notable absence of literature describing its application in folk remedies or ancient healing practices. Because it is not widely recognized as a primary medicinal herb, its historical role remains undefined in academic studies. This lack of data suggests it has not been a central component of traditional botanical knowledge.

The hystorical systems that uses this plant are shown in the list below.

  • No relevant traditional systems found in the provided list.
Evidence Level: ★★★☆☆

What are the pharmacological activities of Salvia plebeia?

This plant has anti-inflammatory, antibacterial, antioxidant, hepatoprotective, and gastroprotective pharmacological activities. Its antioxidant properties help neutralize free radicals and reduce oxidative stress within biological systems. The presence of specific bioactive compounds allows the plant to combat harmful bacterial infections effectively. Furthermore, it provides significant protection to the liver and stomach lining against chemical or environmental damage. These diverse medicinal qualities make it a subject of interest for developing new therapeutic agents.

According to a study published by "Journal of ethnopharmacology", Salvia plebeia R.Br. has been traditionally used to treat conditions such as sore throat, bronchitis, nephritis edema, abscesses, mastitis, hemorrhoids, and bleeding disorders. To date, 325 constituents have been identified within the plant, which are dominated by flavonoids, phenolic acids, terpenoids, volatile oils, sterols, and lignans. Extracts and purified compounds of the plant demonstrate tradition-relevant anti-inflammatory, antiviral, immunoregulatory, and antioxidant activities. Other reported effects include exploratory findings such as hepatoprotective, hypolipidemic, cardiovascular-protective, sedative/anticonvulsant, anticancer, and anti-photoaging activities. The plant is also used in medicinal preparations for the management of pharyngitis, bronchitis, nephritis, dermatitis, and anorectal inflammation.

The primary pharmacological activities of this plant are shown in the list below.

  • anti-inflammatory
  • antibacterial
  • antioxidant
  • hepatoprotective
  • anticonvulsant
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains various medicinal compounds including flavonoids such as homoplantaginin and various phenolic acids like rosmarinic acid. These bioactive constituents are primarily responsible for the plant's antioxidant and anti-inflammatory properties. The presence of rosmarinic acid specifically contributes to its ability to mitigate oxidative stress within biological systems. Furthermore, the complex mixture of flavonoids assists in protecting cells from environmental damage. Together, these chemical components define the therapeutic potential of Salvia plebeia.

According to a study published by "Plant biotechnology journal", Salvia plebeia is an important traditional Chinese medicinal herb featuring flavonoids and phenolic acids as its primary bioactive components. The genome assembly of this plant spans 1.22 Gb with a contig N50 of 91.72 Mb and contains 36,861 annotated protein-coding genes. Four catalytic enzymes are involved in the biosynthesis of rosmarinic acid, including one rosmarinic acid synthase (RAS) and three cytochrome P450 monooxygenases (CYP450s). Specifically, SpCYP98A75, SpCYP98A77, and SpCYP98A78 catalyse the formation of rosmarinic acid from its precursors at either the C-3 or the C-3' position. Additionally, the transcription factor SpbHLH54 positively regulates the biosynthesis of rosmarinic acid and homoplantaginin in Salvia plebeia.

The primary medicinal compounds of this plant are shown in the list below.

  • flavonoids
  • homoplantaginin
  • phenolic acids
  • rosmarinic acid
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for treating asthma, the common cold, cough, flu, and lung inflammation. It is often prepared as a tea or decoction to soothe irritated airways and reduce respiratory distress. The medicinal properties of the leaves help to alleviate the symptoms of a persistent cough and ease the discomfort of a seasonal flu. Furthermore, its anti-inflammatory qualities make it a useful remedy for calming lung inflammation. Regular use can also help manage the breathing difficulties associated with asthma.

According to a study published by "Food science and biotechnology", Salvia plebeia is a component of a fermented extract of medicinal plants used to investigate respiratory protection effects. This extract shows anti-asthmatic and antitussive activities. In mice with ovalbumin/LPS-induced asthma, the treatment resulted in lower levels of IgE, IL-17, and IL-4 in the bronchoa lvolar lavage fluid (BALF) and serum compared to control levels. The treatment also decreased the lung inflammation score and the number of inflammatory cells in the BALF. Furthermore, in citric acid-induced coughing guinea pigs, the treatment decreased the number of coughs.

The main health conditions this plant is used for are shown in the list below.

  • asthma
  • common cold
  • cough
  • flu
  • lung inflammation
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Salvia plebeia, a species used to create medicinal herbal preparations including the EtOAc fraction, MeOH extract, and various health teas. Researchers often utilize the MeOH extract to isolate diverse bioactive compounds for pharmacological study. The EtOAc fraction is specifically employed to concentrate lipophilic constituents that may possess significant biological activity. Beyond laboratory extractions, traditional applications frequently involve brewing the leaves into health teas for wellness purposes. These different preparation methods allow for the targeted delivery of the plant's various chemical properties.

According to a study published by "Archives of pharmacal research", Salvia plebeia was studied for its sedative and gastroprotective activities using MeOH extract and EtOAc fraction. Rosmarinic acid (RA) isolated from S. plebeia was active at 10 and 20 mg/kg (p.o.). HPLC quantification showed that RA comprised 28.5% of the MeOH extract, 33.0% of the EtOAc extract, and 4.46% of the dry weight. The contents of three glycosides were higher than the two aglycones, with 6-hydroxyluteolin 7-O-glucoside at 0.28% of dry weight, cynaroside at 0.35%, and nepitrin at 0.43%. In contrast, quercetin and eupatilin were present at 0.024% and 0.058% respectively. These results suggest that the main polyphenol, RA, plays a major role in the sedative and gastroprotective effects of S. plebeia.

The main herbal preparations of this plant are shown in the list below.

  • EtOAc fraction
  • MeOH extract
  • health teas
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can provide significant gastroprotective activity by helping to shield the stomach lining against various forms of irritation and damage. Research suggests that its bioactive compounds work to mitigate gastric ulcers and reduce inflammation within the digestive tract. These medicinal properties are primarily attributed to the presence of specific polyphenols and antioxidants found in its leaves. By stabilizing the mucosal barrier, the plant helps maintain a healthy internal environment for digestion. This potential therapeutic effect makes it a subject of interest for natural gastrointestinal health studies.

According to a study published by "Archives of pharmacal research", Salvia plebeia was developed as a medicinal herb with sedative and gastroprotective activities. The rosmarinic acid (RA) isolated from the plant was active at doses of 10 and 20 mg/kg (p.o.). HPLC quantification showed that RA comprised 28.5% of the MeOH extract, 33.0% of the EtOAc extract, and 4.46% of the dry weight. Other compounds included three glycosides, specifically 6-hydroxyluteolin 7-O-glucoside at 0.28% of dry weight, cynaroside at 0.35%, and nepitrin at 0.43%. These were higher than the two aglycones, quercetin at 0.024% and eupatilin at 0.058%.

The main side effects this plant can have are shown in the list below.

  • gastroprotective activity
Evidence Level: ★★★☆☆

What herbs are paired with Salvia plebeia?

This plant pairs best with woody herbs like rosemary and thyme, as well as aromatic companions like lemon balm and peppermint.

Its slightly bitter and camphoraceous profile complements the savory notes found in sage and oregano. When used in culinary applications, it balances well with the brightness of basil or the citrusy scent of lavender. These combinations enhance the complex herbal depth of both savory dishes and infused teas.

Pairing it with sweeter herbs can also help temper its pungent undertones for a more rounded flavor.

Evidence Level: ★☆☆☆☆