Clerodendrum japonicum
What's the taxonomical classification of Clerodendrum japonicum?
Clerodendrum japonicum belongs to the kingdom Plantae and is classified within the phylum Streptophyta. Moving through its hierarchical lineage, it is placed in the class Equisetopsida and the subclass Magnoliidae. As a member of the order Lamiales, it falls under the family Lamiaceae. Finally, the plant is categorized under the genus Clerodendrum, with its specific identification being the species japonicum.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Clerodendrum |
| Species | japonicum |
What are the morphological characteristics of this plant?
Clerodendrum japonicum has opposite, ovate leaves with serrated margins and a woody, perennial shrub-like habit that reaches heights of up to two meters. The foliage typically displays a dark green color with prominent venation on the upper surface. Its inflorescence consists of dense, terminal panicles that bear small, tubular, white flowers with distinct purple or lavender anthers. These blossoms are followed by the development of small, fleshy, globose drupes that transition from green to a dark purple or black color when ripe. The stems are square in cross-section, a characteristic common to many members of the Lamiaceae family.
What is the geographical distribution of this plant?
This plant is native to East and Southeast Asia, with primary distributions found in China, Japan, Korea, and Taiwan. It thrives in temperate and subtropical regions where it often grows in forest edges and shaded areas. Some populations have also been documented in parts of Southeast Asia, expanding its range across warmer climates. Its ability to adapt to various moisture levels allows it to colonize diverse habitats within these specific longitudinal belts. Consequently, the species maintains a wide but geographically concentrated presence throughout the Asian continent.
How is this plant cultivated?
This plant thrives when grown in well-drained, moist soil within USDA hardiness zones 7 through 10 under full sun to partial shade.
To ensure vigorous growth, provide consistent moisture and apply organic mulch to help regulate soil temperature and retain humidity. Regular fertilization during the growing season supports the production of its characteristic fragrant, tubular white flowers. Pruning the stems in early spring encourages a bushier habit and prevents the shrub from becoming overly leggy.
Maintaining adequate air circulation around the foliage is also essential to prevent fungal diseases in humid environments.
What parts of this plant are used medicinally?
This plant, Clerodendrum japonicum, is utilized medicinally through the use of its leaves and radix. The leaves are frequently prepared as a decoction to treat various ailments such as skin inflammation and respiratory issues. Its radix, or root, is also harvested to address specific internal conditions within traditional practices. These different botanical components contain diverse phytochemicals that contribute to the plant's therapeutic profile. Practitioners select specific parts based on the particular medicinal goal they aim to achieve.
According to a study published by "International journal of molecular sciences", Clerodendrum japonicum is a medicinal and ornamental plant. The study focused on the leaf senescence process by performing transcriptome sequencing of mature and early-senescent leaves. Transcriptomic analysis identified 522 differentially expressed genes, which included 9 NAC members. Two specific genes, CjNAC43 and CjNAC54, exhibited significantly upregulated expression during the critical senescence phase of 90-130 days. These genes function as positive regulators of leaf senescence in Clerodendrum japonicum by mediating ABA and dark signaling pathways.
The parts of this plant that are ued medicinally are shown in the list below.
- leaf
- radix
What traditional systems uses this plant?
This plant, Clerodendrum japonicum, has been utilized historically in various traditional medical systems to treat ailments such as fever, inflammation, and digestive issues. In Dai medicine, practitioners specifically use different parts of the plant to address localized infections and systemic heat. Beyond this specific practice, the herb is often integrated into regional folk remedies across Southeast Asia for its perceived cooling properties. Historical records suggest that its leaves and roots were frequently prepared as decoctions or topical applications. These long-standing traditions rely on the plant's biological activity to manage various physical discomforts.
According to a study published by "Chinese journal of natural medicines", Radix Clerodendri Japonicum is recorded in the Dai Pharmacopeia. The study involved the construction of a reference database for plant-material DNA-barcode using 48 voucher samples from 12 Clerodendrum species. This database was utilized to identify 27 Radix Clerodendri Japonicum decoction piece samples purchased from hospitals and drug stores. DNA sequencing results revealed that only 1 decoction piece, representing 3.70% of the samples, was authentic C. japonicum. The remaining samples were all identified as adulterants.
The hystorical systems that uses this plant are shown in the list below.
- Dai medicine
What are the pharmacological activities of Clerodendrum japonicum?
This plant has significant pharmacological activities including potent antioxidant and anti-inflammatory properties. The antioxidant capacity of Clerodendrum japonicum helps neutralize free radicals and reduce oxidative stress within biological systems. Furthermore, its anti-inflammatory actions work by inhibiting specific chemical mediators that trigger swelling and pain. These therapeutic effects are primarily attributed to the diverse bioactive compounds found within its leaves and flowers. Researchers continue to investigate these mechanisms to explore the plant's potential in treating chronic inflammatory diseases.
According to a study published by "Genes & genomics", Clerodendrum japonicum (Thunb.) Sweet extract (CJSE) reduces LPS-induced nitric oxide (NO) production in a dose-dependent manner without detectable cytotoxicity. The extract decreases the expression of key inflammatory mediators including inducible nitric oxide synthase and cyclooxygenase-2, as well as proinflammatory cytokine genes such as tumor necrosis factor-α, interleukin-6, and interferon-β. Mechanistically, CJSE is associated with reduced phosphorylation of extracellular signal-regulated kinase (ERK) and nuclear factor-kappa B (NF-κB) in LPS-stimulated cells. Furthermore, the plant demonstrates strong DPPH and ABTS radical scavenging activities. These results are supported by substantial levels of phenolic and flavonoid compounds found within the extract.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatoy
- antioxidant
What medicinal compounds this plant contains?
This plant contains a diverse array of bioactive substances including flavonoid compounds, phenolic compounds, and various terpenoids that contribute to its therapeutic properties. These phytochemicals are primarily responsible for the plant's potent antioxidant and anti-inflammatory activities. Specifically, the presence of phenolic compounds helps in neutralizing free radicals within biological systems. Furthermore, the flavonoid compounds found in the leaves and flowers support cellular protection and metabolic regulation. Researchers continue to study these specific chemical constituents to develop new pharmacological treatments.
According to a study published by "Genes & genomics", Clerodendrum japonicum (Thunb.) Sweet extract (CJSE) contains substantial levels of phenolic and flavonoid compounds. This extract demonstrated strong DPPH and ABTS radical scavenging activities to support its antioxidant potential. CJSE was shown to reduce LPS-induced NO production in a dose-dependent manner without detectable cytotoxicity. The extract also decreased the expression of key inflammatory mediators, including inducible nitric oxide synthase and cyclooxygenase-2, as well as proinflammatory cytokine genes such as tumor necrosis factor-α, interleukin-6, and interferon-β. Mechanistically, CJSE was associated with reduced phosphorylation of extracellular signal-regulated kinase (ERK) and nuclear factor-kappa B (NF-κB) in LPS-stimulated cells.
The primary medicinal compounds of this plant are shown in the list below.
- flavonoid compounds
- phenolic compounds
What health conditions is this plant used for?
This plant is used for treating inflammation, various inflammatory conditions, oxidative stress, and respiratory symptoms. Its bioactive compounds work to reduce swelling and manage the body's immune responses to different ailments. The plant's antioxidant properties are specifically utilized to combat oxidative stress within cells. Additionally, it is frequently applied to alleviate various respiratory symptoms through its medicinal properties. These diverse applications make it a significant subject in traditional herbal medicine.
According to a study published by "Genes & genomics", Clerodendrum japonicum (Thunb.) Sweet is a medicinal plant used to relieve respiratory symptoms and inflammatory conditions. The study investigated the anti-inflammatory effects of Clerodendrum japonicum (Thunb.) Sweet extract (CJSE) in a lipopolysaccharide (LPS)-induced inflammatory model. CJSE reduced LPS-induced nitric oxide (NO) production in a dose-dependent manner and decreased the expression of inflammatory mediators such as inducible nitric oxide synthase and cyclooxygenase-2. The extract also decreased pro-inflammatory cytokine genes including tumor necrosis factor-α, interleukin-6, and interferon-β. Through its antioxidant capacity, CJSE may serve as a potential natural source for managing inflammation and oxidative stress.
The main health conditions this plant is used for are shown in the list below.
- inflammation
- inflammatory conditions
- oxidative stress
- respiratory symptoms
What are the herbal preparations of this plant?
This plant is processed into medicinal herbal preparations such as Clerodendrum japonicum extract and decoction piece to utilize its therapeutic properties. The extract is typically concentrated through solvent extraction to isolate specific bioactive compounds for standardized dosing. In contrast, the decoction piece involves boiling the dried plant material in water to create a traditional liquid infusion. These different methods allow practitioners to tailor the strength and delivery of the herb's medicinal components. Both preparations are utilized in various traditional practices to address different health concerns.
According to a study published by "Genes & genomics", Clerodendrum japonicum (Thunb.) Sweet is a medicinal plant native to East Asia, including Korea, Japan, and China. The leaves of this plant have traditionally been used to relieve respiratory symptoms and inflammatory conditions. Research investigated the effects of Clerodendrum japonicum (Thunb.) Sweet extract (CJSE) in a lipopolysaccharide (LPS)-induced inflammatory model and determined its antioxidant capacity through DPPH and ABTS radical scavenging assays. CJSE reduced LPS-induced NO production in a dose-dependent manner without detectable cytotoxicity. This extract also decreased the expression of inflammatory mediators such as inducible nitric oxide synthase and cyclooxygenase-2, along with proinflammaotory cytokine genes including tumor necrosis factor-α, interleukin-6, and interferon-β. Furthermore, CJSE was associated with reduced phosphorylation of extracellular signal-regulated kinase (ERK) and nuclear factor-kappa B (NF-κB) in LPS-stimulated cells.
The main herbal preparations of this plant are shown in the list below.
- Clerodendrum japonicum extract
- decoction piece
What side effects this plant can have?
This plant can cause adverse health effects such as skin irritation, digestive upset, and potential allergic reactions when handled or consumed. Contact with the leaves or stems may lead to contact dermatitis or localized rashes on sensitive skin. If ingested, individuals might experience nausea, vomiting, or abdominal discomfort. Some people may also develop hypersensitivity symptoms including itching or swelling. It is important to exercise caution because the chemical composition of the plant can trigger unpredictable bodily responses.
The main side effects this plant can have are shown in the list below.
What herbs are paired with Clerodendrum japonicum?
This plant Clerodendrum japonicum is traditionally paired with herbs like licorice root, dandelion, and chrysanthemum to balance its cooling properties in herbal formulations.
Practitioners often combine it with sweet herbs to mitigate its bitter flavor profile while enhancing its efficacy for treating skin ailments. When addressing digestive issues, it may be blended with ginger or peppermint to soothe the gastrointestinal tract. These specific combinations are designed to optimize the plant's ability to clear heat and resolve toxicity within the body.
Careful selection of these adjuncts ensures a more holistic approach to its therapeutic application.