Ophiopogon japonicus
What's the taxonomical classification of Ophiopogon japonicus?
Ophiopogon japonicus belongs to the kingdom Plantae and is classified within the phylum Streptophyta. Within this lineage, it is categorized under the class Equisetopsida and the subclass Magnoliidae. Following its placement in the order Asparagales and the family Asparagaceae, the plant is identified by its specific genus, Ophiopogon, and its species designation, japonicus.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Asparagales |
| Family | Asparagaceae |
| Genus | Ophiopogon |
| Species | japonicus |
What are the morphological characteristics of this plant?
Ophiopogon japonicus has narrow, linear, dark green leaves that form dense, grass-like tufts and grow from a creeping rhizome. These evergreen leaves typically reach a height of 10 to 20 centimeters and possess a smooth, slightly leathery texture. During the blooming season, small, bell-shaped white or pale blue flowers emerge from the foliage on slender stalks. Following the flowering period, the plant produces small, dark blue to black spherical berries that add visual interest to the groundcover. The entire structure creates a compact, clump-forming habit that is ideal for shading soil.
What is the geographical distribution of this plant?
This plant is native to East Asia, specifically spanning across Japan, China, Korea, and Taiwan. It thrives naturally in the understory of temperate forests where shade is abundant. Due to its ability to tolerate various soil types and low light conditions, it has been widely introduced to other temperate regions around the world. Many gardeners in North America and Europe now cultivate it as a reliable groundcover for shade gardens. Its adaptability allows it to persist in diverse environments far beyond its original biological range.
How is this plant cultivated?
This plant, commonly known as Mondo Grass, thrives in well-draining, organic-rich soil and prefers partial shade to full shade environments.
It is a hardy perennial that requires consistent moisture but can tolerate periods of moderate drought once established. Planting should occur in spring or fall to allow the root systems to stabilize before extreme temperatures arrive. Because of its slow growth rate, it is best suited for groundcover applications in low-maintenance landscapes.
Regular pruning may be necessary to remove old foliage and maintain a tidy appearance throughout the growing season.
What parts of this plant are used medicinally?
This plant Ophiopogon japonicus is utilized medicinally through its radix, which encompasses the fibrous roots, nutritive roots, rhizomes, and tubers. The dried root system, known as the radix, serves as the primary source for extracting bioactive compounds. Within this structure, the fibrous roots and nutritive roots provide essential chemical constituents for traditional remedies. The rhizomes act as storage organs that contribute to the plant's overall medicinal potency. Additionally, the tubers are harvested to ensure a consistent supply of the pharmacological properties required for healing.
According to a study published by "Journal of separation science", the medicinal plant Ophiopogon japonicus (L. f.) Ker-Gawl. was used as a case study for authentication. The study focused on the potential quality markers of different origins of ophiopogonis radix. Through an ultra-performance liquid chromatography/quadrupole time-of-flight MS E approach, global metabolites profiling and identification were performed. This process led to the discovery of 2 robust quality markers, specifically cixi-ophiopogon B and ophiopogonin D. These markers were used to discriminate the origins of ophiopogonis radix samples procured from herbal markets.
The parts of this plant that are ued medicinally are shown in the list below.
- radix
- fibrous root
- nutritive roots
- rhizomes
- tubers
What traditional systems uses this plant?
This plant, known as Mondo Grass, has been utilized for centuries in Kampo and other traditional Oriental Medicine systems to nourish Yin and moisten the lungs. Practitioners frequently prescribe its tuberous roots to address symptoms such as dry coughs, thirst, and shortness of breath. In the context of Kampo, it is often integrated into complex herbal formulas to balance internal heat and promote fluid production. Its historical use focuses heavily on treating deficiency patterns related to the lung and stomach meridians. This botanical has thus served as a foundational element in managing respiratory and digestive ailments throughout various Asian medicinal traditions.
According to a study published by "Journal of natural medicines", Ophiopogon japonicus is used in traditional Chinese and Japanese (Kampo) medicine to nourish the yin. This plant has been utilized in clinical practice to promote fluid secretion and to moisturize the lungs and skin. The root of the original plant contains two chemotypes known as Type A and Type B. Within these roots, four specific index compounds were identified as compound 1, compound 2, compound 3, and compound 4. Compound 4 was isolated as the main steroidal saponin from both Type A and Type B.
The hystorical systems that uses this plant are shown in the list below.
- Kampo
- Oriental Medicine
What are the pharmacological activities of Ophiopogon japonicus?
This plant has diverse pharmacological activities including anti-inflammatory, antioxidant, antitussive, expectorant, and immunomodulatory properties. Its antioxidant effects help neutralize free radicals and reduce oxidative stress within biological systems. The plant acts as an effective antitussive and expectorant, making it a traditional remedy for suppressing coughs and thinning mucus in the respiratory tract. Additionally, its anti-inflammatory actions help mitigate swelling and pain caused by various physiological triggers. Its immunomodulatory capacity further allows it to assist in regulating and balancing the body's immune responses.
According to a study published by "Sheng wu gong cheng xue bao = Chinese journal of biotechnology", the tuberous roots of Ophiopogon japonicus are rich in bioactive components such as flavonoids. These flavonoids possess anti-inflammatoty, antioxidant, and immunomodulatory properties. Under cadmium stress at concentrations of 1 mg/L and 10 mg/L, the content of flavonoids in Ophiopogon japonicus increased in a concentration-dependent manner. Metabolomics analysis revealed a total of 110 flavonoids in Ophiopogon japonicus, including flavones, flavanols, flavonols, flavone and flavonol derivatives, flavanones, isoflavonoids, chalcones and dihydrochalcones, and anthocyanins. The study also identified several genes associated with flavonoid biosynthesis, such as 14 genes encoding 4-coumarate CoA ligase, 2 genes encoding chalcone isomerase, and 14 genes encoding phenylalanine ammonia lyase.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- anti-oxidant
- antitussive
- expectorant
- immunomodulatory
What medicinal compounds this plant contains?
This plant contains several bioactive medicinal compounds including Methylophiopogonanone A, Ophiopogonin D, Ophiopogonoside A, Ophioside A, and Ophiopogonin B. These specific chemical constituents contribute to the plant's diverse pharmacological activities in traditional medicine. Researchers have identified these various saponins and phenolic compounds as key drivers of its therapeutic potential. Each of these molecules plays a distinct role in the plant's biological influence on human physiological systems. Studying these specific structures helps scientists understand how the plant functions as a natural remedy.
According to a study published by "Drug metabolism and disposition: the biological fate of chemicals", Methylophiopogonanone A (MOA) is one of the major constituents in the Chinese herb Ophiopogon japonicus. This abundant homoisoflavonoid contains a methylenedioxyphenyl moiety. MOA concentration-dependently inhibited CYP1A, 2C8, 2C9, 2C19, and 3A in human liver microsomes with IC50 values varying from 1.06 to 3.43 μM. It also acts as an inactivator of CYP2D6 and CYP2E1, with KI and kinact values of 207 µM and 0.07 minute-1 for CYP2D6, and 20.9 µM and 0.03 minutes-1 for CYP2E1. Furthermore, CYP2D6, 1A2, and 2E1 catalyze the metabolic activation of MOA to a corresponding O-quinone intermediate.
The primary medicinal compounds of this plant are shown in the list below.
- Methylophiopogonanone A
- Ophiopogonin D
- Ophiopogonin B
- Ophiopogonoside A
- Ophioside A
What health conditions is this plant used for?
This plant is used for treating respiratory ailments such as a persistent cough, various types of coughs, and symptoms related to dry lungs. It is frequently employed in traditional medicine to address lung dryness by moisturizing the respiratory tract. The herb helps to soothe irritation and regulate moisture levels within the pulmonary system. Additionally, it is effective at resolving issues involving excessive phlegm by helping to clear or transform it. These properties make it a valuable remedy for restoring balance to the lungs.
According to a study published by "Phytomedicine : international journal of phytotherapy and phytopharmacology", the root portion of the Chinese medicinal plant Ophiopogon japonicus is traditionally used to treat fever, inflammation, cough, and sputum. A steroidal glycoside obtained from this plant, known as Ophiopogonin D (OP-D), has been studied for its ability to suppress the proliferation of human lung cancer cells. This compound modulates multiple oncogenic signaling pathways, specifically the NF-κB, PI3K/AKT, and AP-1 signaling cascades. The study suggests that OP-D may be used in combination with chemotherapeutic agents for cancer therapy to augment cell death induced by paclitaxel. While it affects several pathways, it did not affect the JNk, p38, or ERK MAP kinases.
The main health conditions this plant is used for are shown in the list below.
- cough
- coughs
- dry lungs
- lung dryness
- phlegm
What are the herbal preparations of this plant?
This plant is used to create medicinal preparations such as the traditional formula Mai-Meu-Dong-Tang, the clinical Sheng-Mai Injection, and advanced pharmaceutical forms like Ophiopogon japonicus saponin enteric microspheres. Researchers also utilize a 70% ethanol extract to isolate specific bioactive compounds for therapeutic study. Additionally, aqueous extracts are frequently employed to derive various pharmacological properties from the plant's roots. These diverse preparations range from ancient herbal decoctions to modern, targeted drug delivery systems.
According to a study published by "The Journal of dermatology", a 66-year-old female experienced Stevens-Johnson syndrome after consuming a health drink containing ophiopogonis tuber. This reaction occurred following the ingestion of the drink for fever, leading to bullous and eroded lesions and high degrees of corneal erosion. After hospital admission, the patient received 1000 mg/day of methylprednisolone sodium succinate for 5 days. A challenge test using a one hundredth dose was positive, and patch tests identified that Mai-Meu-Dong-Tang (ophiopogonis) alone was positive at 72 hours. There is no previous report of Stevens-Johnson syndrome caused by this specific herbal component.
The main herbal preparations of this plant are shown in the list below.
- Mai-Meu-Dong-Tang
- Sheng-Mai Injection
- Ophiopogon japonicus saponin enteric microsphere
- 70% ethanol extract
- aqueous extracts
What side effects this plant can have?
This plant can cause severe adverse reactions including Stevens-Johnson syndrome, bullous and eroded lesions of the skin and mucous membranes, corneal erosion, erythema, and liver dysfunction. These serious dermatological complications manifest as painful blistering and skin peeling that can affect the entire body. The involvement of mucous membranes and the development of corneal erosion pose significant risks to both the respiratory and ocular systems. Additionally, patients may experience widespread redness known as erythema across the skin's surface. Beyond skin issues, the plant is also associated with potentially dangerous liver dysfunction.
According to a study published by "The Journal of dermatology", the consumption of a health drink containing ophiopogonis tuber caused Stevens-Johnson syndrome in a 66-year-old female. After taking the drink for fever, the patient developed bullous and eroded lesions on the skin of her entire body and mucous membranes, as well as high degrees of corneal erosion and liver dysfunction. Treatment required steroid pulse therapy consisting of 1000 mg/day of methylprednisolone sodium succinate for 5 days. A challenge test using a one hundredth dose of the drink was positive, and patch tests confirmed that Mai-Meu-Dong-Tang (ophiopogonis) alone was positive at 72 hours. This case marks no previous report of Stevens-Johnson syndrome caused by a health drink or Mai-Meu-Dong-Tang.
The main side effects this plant can have are shown in the list below.
- Stevens-Johnson syndrome
- bullous and eroded lesions of the skin and mucous membranes
- corneal erosion
- erythema
- liver dysfunction
What herbs are paired with Ophiopogon japonicus?
This plant Ophiopogon japonicus is most commonly paired with Rehmannia glutinosa and Schisandra chinensis to support kidney yin and nourish blood.
In traditional formulas, it is frequently combined with Poria cocos to address dampness while calming the spirit. Practitioners also utilize it alongside Glycyrrhiza uralensis to harmonize the various medicinal properties of the herbal decoction. These specific combinations are designed to moisten the lungs and alleviate dryness in the respiratory tract.
Such strategic pairings ensure the formula effectively addresses deficiencies in the body's vital fluids.