Lobelia chinensis
What's the taxonomical classification of Lobelia chinensis?
Lobelia chinensis 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. The taxonomic hierarchy continues through the order Asterales and the family Campanulaceae, eventually reaching its specific designation within the genus Lobelia. Ultimately, the plant is identified by its unique species name, chinensis.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Asterales |
| Family | Campanulaceae |
| Genus | Lobelia |
| Species | chinensis |
What are the morphological characteristics of this plant?
Lobelia chinensis has an erect, herbaceous growth habit characterized by slender, branching stems that typically reach heights of thirty to sixty centimeters. The leaves are arranged oppositely along the stem and possess an oblong to lanceolate shape with finely serrated margins. Small, tubular flowers emerge from the leaf axils, displaying a distinctive two-lipped structure with a color palette ranging from pale blue to violet. The reproductive anatomy features a fused staminal tube that surrounds the style, a hallmark of the Lobelioideae subfamily. These plants often form dense, low-growing clusters in their natural habitats due to their spreading basal foliage.
What is the geographical distribution of this plant?
This plant is native to East and Southeast Asia, specifically spanning across China, Taiwan, Japan, and parts of Indochina. It typically thrives in moist, shaded environments such as forest edges or near rocky stream banks throughout these regions. Within its range, it is often found growing in subtropical or temperate climates that provide consistent humidity. Local populations are most concentrated in hilly or mountainous terrains where soil moisture remains high. These specific environmental conditions allow the species to maintain stable habitats across its broad longitudinal distribution.
How is this plant cultivated?
This plant thrives in well-draining, humus-rich soil with consistent moisture and requires partial shade to prevent its delicate foliage from scorching.
It should be planted in areas that receive dappled sunlight to mimic its natural forest floor habitat. Regular watering is essential to maintain humidity, though the soil must never become waterlogged to avoid root rot. Mulching around the base helps regulate soil temperature and retain necessary moisture levels during warmer months.
Once established, the plant can be propagated through stem cuttings taken during the growing season.
What parts of this plant are used medicinally?
This plant Lobelia chinensis is used medicinally in its entirety, with the full plant being utilized for its therapeutic properties. Traditional practitioners often employ the whole herb to treat various ailments such as respiratory issues and inflammation. The various components of the plant contain bioactive compounds that contribute to its overall medicinal efficacy. When prepared correctly, the entire specimen serves as a potent remedy in herbal formulations. This comprehensive use ensures that all active constituents are available for healing purposes.
According to a study published by "Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials", the chemical constituents were studied from the full plant of Lobelia chinensis. Twelve compounds were isolated from the plant using several column chromatographic methods. These structures include 6,7-dimethoxycoumarin (1), fraxinol (2), 5-hydroxy-7-methoxycoumarin (3), tomentin (4), 3'-hydroxygenkwanin (5), apiigenin (6), quercetin (7), luteolin (8), linarin (9), luteolin 3',4'-dimethylether-7-O-beta-D-glucoside (10), isoferulic acid (11), and ethyl ros-marinate (12). Compounds 1-5 and 10-12 were isolated from this plant for the first time.
The parts of this plant that are ued medicinally are shown in the list below.
- full plant
What traditional systems uses this plant?
This plant, Lobelia chinensis, has been used extensively in Traditional Chinese Medicine to treat various ailments including inflammation, fever, and respiratory issues. Practitioners historically utilized its properties to clear heat and detoxify the body during times of illness. It was often prepared as a decoction or topical application to address skin conditions and swelling. Beyond its medicinal role, historical records suggest its use in managing digestive disturbances through its emetic effects. These ancient applications demonstrate the plant's significant role in the long-standing herbal pharmacopeia of East Asia.
According to a study published by "Drug design, development and therapy", Lobelia chinensis is one of four commonly used anticancer herbs in traditional Chinese medicine. The study examined its in vitro antitumor effects toward the human MM cell line A-375. No cytotoxicity was observed in A-375 cells treated with the crude water extract of Lobelia chinensis.
The hystorical systems that uses this plant are shown in the list below.
- Traditional Chinese Medicine
What are the pharmacological activities of Lobelia chinensis?
This plant has diverse pharmacological activities including anti-mycobacterial, anti-tubercular, antidiabetic, antioxidant, and cytotoxic properties. Its anti-mycobacterial and anti-tubercular effects demonstrate a significant potential for treating various bacterial infections, particularly those caused by Mycobacterium species. The plant also exhibits antidiabetic capabilities that may assist in managing blood glucose levels. Furthermore, its antioxidant properties help neutralize harmful free radicals within biological systems. Finally, the observed cytotoxic activities suggest that certain extracts may hold promise for further research in cancer therapy development.
According to a study published by "Asian Pacific journal of tropical biomedicine", Lobelia chinensis Lour. exhibits anti-Mycobacterium tuberculosis activity. The extracts were evaluated using concentrations ranging from 50-800 μg/mL in the resazurin microtitre assay (REMA) for 5 days and in the MGIT 960 system assay for 4 weeks. The n-hexane extract of Lobelia chinensis consistently inhibited the growth of M. tuberculosis in the MGIT 960 system for 4 weeks with a single-treatment. This specific extract showed a minimum inhibitory concentration measured at 800 μg/mL. These findings suggest the plant has potential as an effective candidate agent for developing a new anti-tuberculosis drug.
The primary pharmacological activities of this plant are shown in the list below.
- anti-mycobacterial
- anti-tubercular
- anti-diabetic
- antioxidant
- cytotoxic
What medicinal compounds this plant contains?
This plant contains several medicinal compounds including alkaloids, coumarin, flavonoids, lobetyolin, and lobetyolinin. The presence of diverse alkaloids contributes significantly to its various pharmacological properties. Within the flavonoid group, specific substances like lobetyolin play a role in the plant's chemical profile. Additionally, the compound lobetyolinin serves as another important constituent found within its tissues. These chemical components work together to define the medicinal potential of Lobelia chinensis.
According to a study published by "ACS omega", the 70% hydroethanol extracts of Lobelia chinensis were analyzed using LC-ESI-MS/MS. This analysis identified 45 metabolites, which included different flavonoids, coumarin, polyacetylenes, and alkaloids as the most abundant class. The Lobelia chinensis extract demonstrated significant antioxidant activity with an IC50 value of 1.111 mg/mL. Molecular simulation and docking studies were performed on the main compounds to predict potential antidiaabetic activity and pharmacokinetic properties. These results confirmed the alpha-glycosidase inhibitory activity of the tested compounds through their binding mode to key amino acid residues.
The primary medicinal compounds of this plant are shown in the list below.
- alkaloids
- coumarin
- flavonoids
- lobetyolin
- lobetyolinin
What health conditions is this plant used for?
This plant is used for treating respiratory ailments including asthma, bronchitis, and infections caused by Mycobacterium tuberculosis. It contains various alkaloids that act as bronchodilators to help open the airways during breathing difficulties. Traditional practitioners often utilize its properties to soothe coughs and reduce inflammation in the lungs. The bioactive compounds within the plant are believed to possess antimicrobial qualities that target specific pathogens. These medicinal applications make it a significant resource in various traditional healing practices.
According to a study published by "Asian Pacific journal of tropical biomedicine", Lobelia chinensis Lour. is evaluated for its anti-Mycobacterium tuberculosis activity. The extracts were tested against concentrations ranging from 50-800 μg/mL using the resazurin microtiter assay (REMA) for 5 days and the MGIT 960 system assay for 4 weeks. The n-hexane extract of Lobelia chinensis consistently inhibited the growth of M. tuberculosis in the MGIT 960 system for 4 weeks with a single-treatment. This specific extract showed a minimum inhibitory concentration measured at 800 μg/mL. These findings suggest the potential of Lobelia chinensis as an effective candidate agent for developing a new anti-tuberculosis drug.
The main health conditions this plant is used for are shown in the list below.
- Mycobacterium tuberculosis
- tuberculosus
What are the herbal preparations of this plant?
This plant is Lobelia chinensis, which is utilized to create various medicinal herbal preparations such as ethanol extracts and n-hexane extracts for pharmacological study. Researchers often employ ethanol extracts to isolate polar bioactive compounds that contribute to the plant's traditional therapeutic properties. In contrast, the n-hexane extract is specifically used to target non-polar constituents and lipids within the plant material. These different extraction methods allow scientists to isolate specific alkaloids and chemical profiles for medicinal analysis. Studying these diverse preparations helps clarify the complex chemical makeup responsible for the plant's biological activities.
According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", the study examined the effects of cool and hot ethanol extracts from Qinglongyi on the biochemical function of tumor membranes in H22 mice. These extracts were used to observe changes in tumor membrane protein content, lipid fluidity, and membrane close capability. The results showed that both the cool and hot ethanol extracts from Qinglongyi decreased the content of tumor membrane protein, the lipid fluidity, and the membrane close capability. By changing these biochemical substances and functions, the extracts cause the disaggregation and death of the tumor cell. This process may be one of the mechanisms underlying the anti-tumor effects of Qinglongyi.
The main herbal preparations of this plant are shown in the list below.
- ethanol extracts
- n-hexane extract
What side effects this plant can have?
This plant can cause severe health side effects including nausea, vomiting, dizziness, tremors, convulsions, tachycardia, respiratory depression, and diarrhea. Consuming Lobelia chinensis can lead to significant gastrointestinal distress such as vomiting and diarrhea. Neurological complications often manifest as dizziness, tremors, or even life-threatening convulsions. The cardiovascular system may also be affected, specifically through the onset of tachycardia. Finally, high doses can lead to dangerous respiratory depression in the user.
The main side effects this plant can have are shown in the list below.
- Nausea
- Vomiting
- Dizziness
- Tremors
- Convulsions
- Tachycardia
- Respiratory depression
- Diarrhea
What herbs are paired with Lobelia chinensis?
This plant Lobelia chinensis is traditionally paired with herbs like chrysanthemum, dandelion, and honeysuckle to enhance its ability to clear heat and detoxify the body.
These combinations are frequently utilized in traditional Chinese medicine to treat respiratory ailments and inflammatory conditions. Adding dandelion helps to increase the diuretic effect and promote liver detoxification during treatment. Chrysanthemum is often included to soothe the eyes and reduce internal wind-heat symptoms.
Such herbal synergies are carefully balanced to manage fever and reduce swelling in various systemic illnesses.