Cymbopogon nardus

What's the taxonomical classification of Cymbopogon nardus?

Cymbopogon nardus belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida, it is situated in the subclass Magnoliidae and falls under the order Poales. It is a member of the family Poaceae, which is further categorized into the genus Cymbopogon, with the specific identification being the species nardus.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Poales
Family Poaceae
Genus Cymbopogon
Species nardus
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Cymbopogon nardus has perennial, tufted, aromatic grass leaves that are linear, involute, and can reach lengths of up to 100 centimeters with a width of approximately 0.5 to 1 centimeter. The plant features a dense, fibrous root system that helps it anchor firmly in tropical soils. Its inflorescence consists of narrow, contracted panicles that emerge from the top of the culms. The individual spikelets are small and arranged in a way that facilitates efficient wind pollination. These characteristic structures collectively define the plant's robust and spreading growth habit.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to the tropical and subtropical regions of South and Southeast Asia, including countries such as India, Sri Lanka, China, and Thailand. It thrives primarily in humid environments where warm temperatures and significant rainfall are consistent. Within these territories, the species is frequently found growing in open grasslands, along roadsides, and in disturbed areas. Its distribution is closely linked to the availability of moist, well-drained soils characteristic of its native habitats. Because of its aromatic properties, it is often cultivated in specific agricultural zones throughout these tropical belts.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, Cymbopogon nardus, requires well-draining soil, full sunlight, and consistent warmth to thrive in tropical or subtropical climates.

It is best propagated through the division of rhizomes or by planting stem cuttings in moist earth. Regular watering is necessary to maintain humidity, though the plant is relatively drought-tolerant once established. Because it prefers warm environments, it must be moved indoors or protected from frost in temperate regions.

Proper cultivation ensures a high yield of essential oils used for aromatic purposes.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant, Cymbopogon narods, is utilized medicinally primarily through its aromatic leaves, although the inflorescence, root, seed, and grass components also hold specific therapeutic values. The leaves are the most common part harvested to extract essential oils used for treating fever and digestive issues. Extracts from the inflorescence can assist in calming the nervous system. While less frequent, the root and seed are sometimes processed to alleviate specific ailments. Even the entire grass can be utilized in traditional remedies to promote overall wellness.

According to a study published by "International journal of molecular sciences", the essential oil obtained from the leaves of Cymbopogon nardus (L.) Rendle possesses anti-tumor, anti-nociceptive, and antibacterial activities. This essential oil showed antifungal potential against tested strains with MIC values ranging from 250 to 1000 μg/mL, although two clinical isolates of C. tropicalis had an MIC > 1000 μg/mL. The oil inhibited yeast growth and hyphal formation of C. albicans strains at concentrations between 15.8 and 1000 μg/mL. Inhibition of mature biofilms for C. albicans, C. krusei, and C. parapsilosis occurred at a concentration of 10× MIC. Regarding cytotoxicity, the IC50 values for the essential oil were 96.6 μg/mL for HepG-2 cells and 33.1 μg/mL for MRC-5 cells.

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

  • leaves
  • inflorescence
  • root
  • seed
  • grass
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant Cymbopogon nar𝗱us, commonly known as citronella grass, has been utilized for centuries within the Jamu herbal medicine system of Indonesia and various forms of Traditional African Medicine to treat ailments such as fever, skin infections, and digestive issues. In the Indonesian Jamu tradition, practitioners often prepare infusions or topical applications from the leaves to soothe inflammation and promote relaxation. Within Traditional African Medicine, different regional groups employ the plant's essential oils to repel insects and act as an antiseptic for wound care. Its strong aromatic properties are frequently used in these cultural practices to cleanse the body and spirit. These diverse historical applications highlight the plant's significant role in global ethnobotany.

According to a study published by "Journal of natural medicines", Cymboogon nardus is one of 28 Indonesian medicinal plants that were screened for protein tyrosine phosphatase 1B inhibitory activities. The water extract of Cymboogon nardus exhibited ≥70 % inhibition at 25 μg/mL. These findings suggest that such medicinal plants may contribute to the treatment and/or prevention of type II diabetes and/or obesity through PTP1B inhibition.

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

  • Jamu
  • Traditional African Medicine
Evidence Level: ★★★☆☆

What are the pharmacological activities of Cymbopogon nardus?

This plant has antibacterial, antifungal, antimicrobial, antioxidant, and mosquito repellent pharmacological activities. Its essential oils contain bioactive compounds that effectively inhibit the growth of various pathogenic bacteria and fungi. These properties contribute to its broad antimicrobial potential in treating different types of infections. Additionally, the plant provides antioxidant benefits by neutralizing harmful free radicals in the body. The high concentration of citronella oil also makes it a highly effective natural mosquito repellent.

According to a study published by "Antibiotics (Basel, Switzerland)", Cymbopogon nardus essential oils exhibit antibacterial efficacy that is significantly enhanced when using liposome encapsulation compared to water-soluble fractions, which have MICs ≥ 25%. The liposome containing C. nardus EO demonstrated a minimum inhibitory concentration (MIC) of 0.08% against Staphylococcus aureus. Chemical analysis via GC-MS revealed that the phytochemical profile of C. nardus is dominated by geraniol at 21.5%. These findings support the potential of encapsulated Cymbopogon essential oils as an effective strategy to address antimicrobial resistance.

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

  • antibacterial
  • antifungal
  • antimicrobial
  • antioxidant
  • mosquito repellent
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains the medicinal compounds citronellal, citronellol, geraniol, neral, and nerol. These essential oils are primarily responsible for the distinct aromatic profile and therapeutic properties of the species. Citronellal and citronellol serve as major components that contribute to its insect-repellent and antimicrobial effects. The presence of geraniol and nerol further enhances the plant's ability to provide soothing and antiseptic benefits. Additionally, the isomer neral plays a key role in the overall chemical synergy of the plant's bioactive profile.

According to a study published by "International journal of molecular sciences", the essential oil of Cymbopogon nardus (L.) Rendle contains oxygen-containing monoterpene compounds including citronellal, geranial, geraniol, citronellol, and neral. This essential oil exhibits pharmacological properties such as anti-tumor, anti-nociceptive, and antibacterial activities. Testing showed antifungal MIC values ranging from 250 to 1000 μg/mL, although two clinical isolates of C. tropicalis had an MIC > 1000 μg/mL. The oil inhibited yeast growth and hyphal formation at concentrations between 15.8 and 1000 μg/mL, while mature biofilm inhibition occurred at 10× MIC. Cytotoxicity investigations against cell lines yielded IC50 values of 96.6 μg/mL for HepG-2 and 33.1 μg/mL for MRC-5.

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

  • citronellal
  • citronellol
  • geraniol
  • neral
  • nerol
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for relieving fever, inflammation, headache, nausea, and vomiting. The essential oils found in the leaves possess antipyretic properties that help lower body temperatures during an illness. Its anti-inflammatory effects can reduce swelling and discomfort throughout the body. When consumed as a tea, it serves as an effective remedy to soothe stomach upset and ease nausea. Furthermore, the calming aromatic compounds help alleviate the tension associated with a persistent headache.

According to a study published by "Journal of ethnopharmacology", Cymboogon nardus (III) is used in folk medicine for the treatment of many diseases, including parasitical diseases such as fevers and headaches. This specific species was evaluated in vitro for its antitrypanosomal activity against Trypano Soma brucei brucei and its antiplasmodial activity against Plasmodium falciparum. The essential oil of Cymboogon nardus (III) contains 28 compounds, including β-citronellal, neroil, β-citronellol, elemol, and limonene. Regarding safety, the essential oil of Cymboogon nardus (III) showed low or no cytotoxicity when tested against Chinese Hamster Ovary (CHO) cells and the WI38 human non cancer fibroblast cell line.

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

  • fever
  • inflammation
  • headache
  • nausea
  • vomiting
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Cymbopogon nardus, commonly known as citronella grass, and it is used to create medicinal preparations such as essential oil, cream, and ethanol extract. The essential oil is frequently distilled from the leaves to serve as a potent topical repellent or aromatherapy agent. For soothing skin irritations or muscle aches, the plant's active compounds are often incorporated into a topical cream. An ethanol extract can be produced to concentrate the herb's phytochemicals for various therapeutic applications. These diverse forms allow the plant's aromatic and antimicrobial properties to be utilized effectively in different medicinal contexts.

According to a study published by "Antibiotics (Basel, Switzerland)", thirty essential oils were evaluated at 0.5 mg/mL for in vitro growth inhibition of three main postharvest fungi. The essential oil extracted from Cymbopogon nardus completely inhibited the mycelial growth of Botrytis cinerea. Among the three pathogens tested, Cymbopogon nardus was one of the essential oils that showed the highest inhibition. This plant was included in the study of thirty essential oils evaluated for their ability to control fungal species.

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

  • Essential oil
  • Cream
  • Ethanol extract
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can cause skin reactions such as dermatitis and mild irritancy when it comes into direct contact with human tissue. These adverse effects are typically localized to the areas where the plant oils or leaves have touched the skin. Individuals with sensitive skin or existing allergies may experience redness, itching, or a slight burning sensation. While these reactions are often manageable, they serve as a warning to limit physical contact with the plant. Monitoring for these symptoms is essential for anyone handling the botanical material.

According to a study published by "Dermatosen in Beruf und Umwelt. Occupation and environment", the value of a mixture of citronella and cassia oils was evaluated for the detection of hypersensitivity to essential oils. The investigation focused on the use of two essential oils for consecutive testing in patients with dermatitis. Chromatographic investigation demonstrated that in this mixture no new peaks appear and no peaks disappear. Skin tests performed with the mixture yielded positive results in nearly all cases of hypersensitivity to citronella or cassia oil and in these cases only. It is suggested that by using the mixture the probability of detecting hypersensitivity to essential oils is increased.

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

  • dermatitis
  • mild irritancy
Evidence Level: ★★★☆☆

What herbs are paired with Cymbopogon nardus?

This plant, commonly known as lemongrass, pairs best with citrus, ginger, coconut, and various spicy or aromatic herbs like basil, mint, and cilantro.

Its bright, lemony profile serves as a foundational element that elevates the complexity of milder herbs. When used in savory dishes, it complements the earthy notes of thyme or the pungent warmth of garlic and shallots. In sweet applications, it blends seamlessly with the floral qualities of lavender or the coolness of peppermint.

These combinations work together to balance acidic, sweet, and savory flavor profiles in both culinary and therapeutic contexts.

Evidence Level: ★☆☆☆☆