Crotalaria assamica
What's the taxonomical classification of Crotalaria assamica?
Crotalaria assamica belongs to the kingdom Plantae and is categorized within the phylum Streptophyta. As a member of the class Equisetopsida and the subclass Magnoliidae, it follows a lineage defined by the order Fabales. It is further classified under the family Fabaceae, a group commonly known for its legumes. Within this family, the plant is placed in the genus Crotalaria, with its specific identity defined by the species name assamica.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Fabales |
| Family | Fabaceae |
| Genus | Crotalaria |
| Species | assamica |
What are the morphological characteristics of this plant?
Crotalaria assamica has an erect, perennial herb morphology characterized by woody stems, trifoliate leaves, and bright yellow pea-like flowers. The leaves are arranged in groups of three with ovate or oblong leaflets that possess entire margins. Its inflorescence typically features small clusters of flowers that emerge from the leaf axils. The most distinctive feature is the inflated, bladder-like legume pod which contains the seeds. These pods are often slightly curved and serve as a key diagnostic trait for the species.
What is the geographical distribution of this plant?
This plant is native to the tropical and subtropical regions of Northeast India, specifically within the state of Assam. It is primarily found growing in the moist, humid environments characteristic of the Brahmaputra river valley. The species is also documented in parts of neighboring Southeast Asian countries that share similar climatic conditions. Its distribution is often limited to areas with seasonal rainfall and well-drained soils. Researchers locate these specimens mainly in disturbed forest areas or along the edges of natural vegetation.
How is this plant cultivated?
This plant, Crotalaria assamica, is cultivated primarily as a green manure or nitrogen-fixing cover crop in tropical and subtropical agricultural soils.
Farmers typically sow the seeds in well-drained loamy soils during the onset of the rainy season to maximize biomass production. The plant thrives in warm climates where it can rapidly develop a dense root system capable of hosting nitrogen-fixing bacteria. Once the plant reaches its peak vegetative stage, it is incorporated back into the earth to enrich the soil organic matter.
This cultivation method significantly improves soil fertility and enhances the productivity of subsequent food crops.
What parts of this plant are used medicinally?
This plant utilizes its seeds for medicinal purposes in traditional healing practices. These specific seeds are often processed or prepared in unique ways to treat various ailments. Beyond the seeds, other components of the plant may also hold therapeutic value depending on the specific treatment needed. Practitioners frequently rely on the chemical properties found within these parts to manage health conditions. This targeted use of the seeds highlights the plant's importance in regional herbal medicine.
According to a study published by "Bioorganic & medicinal chemistry letters", four known compounds were isolated from the seeds of C. assamica. These compounds are used for their potential value in the treatment and prevention of central and peripheral inflammatory diseases associated with excess production of chemical mediators. The study focuses on the isolation of these substances from the plant parts to identify anti-inflammatory flavonoids and pterocarpanoids. While the study provides various IC50 values for other compounds, it specifies that four known compounds were derived from the seeds of C. assamica.
The parts of this plant that are ued medicinally are shown in the list below.
- seeds
What traditional systems uses this plant?
This plant, Crotalaria assamica, has been utilized in traditional Ayurvedic and folk medicine practices across parts of South Asia to treat various ailments.
Local communities often employ its leaves and roots to manage inflammation and skin conditions through topical applications. In some historical contexts, extracts from the plant were prepared to address digestive issues or to serve as a remedy for minor wounds. These traditional uses reflect a deep-seated reliance on the botanical properties of the species within indigenous healing systems.
Knowledge regarding its specific therapeutic preparations is typically passed down through generations of herbal practitioners.
What are the pharmacological activities of Crotalaria assamica?
This plant has anti-apoptotic, anti-inflammatory, anti-necrotic, antioxidant, and liver protection pharmacological activities. Its phytochemical constituents work to mitigate cellular damage by suppressing programmed cell death and preventing tissue necrosis. The presence of bioactive compounds also helps neutralize free radicals, providing significant antioxidant support to biological systems. Furthermore, the plant demonstrates a capacity to reduce inflammation and shield hepatic cells from toxic insults. These combined properties contribute to its potential therapeutic utility in managing various inflammatory and degenerative conditions.
According to a study published by "Journal of ethnopharmacology", Crotalaria assamica Benth alleviates acetaminophen-induced liver injury through the upregulation of the Nrf2 pathway. The extract of C. assamica (ECA) significantly reduces serum lactate dehydrogenase, aspartate transaminase, and alanine transaminase contents while adjusting oxidative indices of serum and liver tissues. In vivo, ECA up-regulates the expressions of NQO1, HO-1, Nrf2, p-AKT, BCL-2, AKT, and IL-6 to ameliorate inflammation and necrosis. The bioactive compound sarosiensin V increases the viability of APAP-induced HepG2 cells and restores liver function activity by enhancing antioxidative capacity and mitochondrial membrane potential. Ultimately, C. assamica and sarosiensin V inhibit oxidative stress, inflammation, apoptosis, and necrosis of liver tissues.
The primary pharmacological activities of this plant are shown in the list below.
- anti-apoptotic
- anti-inflammatory
- anti-necrotic
- antioxidant
- liver protection
What medicinal compounds this plant contains?
This plant contains various medicinal compounds including pyrrolizidine alkaloids, flavonoids, and diverse terpenoids. These pyrrolizidine alkaloids are the most prominent secondary metabolites found within its chemical profile. Researchers study these specific substances for their potential biological activities and pharmacological properties. In addition to these alkaloids, the presence of flavonoids contributes to the overall antioxidant capacity of the species. Understanding this complex chemical makeup is essential for evaluating the plant's traditional therapeutic uses.
According to a study published by "The American journal of Chinese medicine", Crotalaria assamica was compared regarding its pyrrolizidine alkaloid content. This plant was found to contain high concentrations of pyrrolic metabolites in the livers of mice following a single oral dose of its extracts. These high concentrations of pyrrolic metabolites were not detected in the case of the Eupatorium species. Additionally, the study notes that Crotalaria assamica had higher alkaloid concentrations compared to E. japonicum Thunb, E. fortunei, and E. chinense.
The primary medicinal compounds of this plant are shown in the list below.
- pyrrolizidine alkaloid
What health conditions is this plant used for?
This plant is used for treating acetaminophen-induced liver injury, bile related diseases, drug-induced liver injury, inflammation of liver tissues, and various other liver related diseases. It functions as a therapeutic agent to mitigate damage caused by toxic substances in the body. Researchers have noted its ability to protect hepatic cells from oxidative stress and chemical toxicity. The medicinal properties of the plant specifically target the reduction of swelling and cellular destruction within the organ. Consequently, it serves as a significant natural resource for managing complex hepatotoxicity.
According to a study published by "Journal of ethnopharmacology", Crotalaria assamica Benth is commonly used by the Dai of China to treat liver and bile related diseases. Research shows that the extract of C. assamica (ECA) can alleviate acetaminophen-induced liver injury by reducing serum lactate dehydrogenase, aspartate transaminase, and alanine transaminase levels. The plant and its bioactive compound sarosiensin V inhibit oxidative stress, inflammation, apoptosis, and necrosis of liver tissues. In vivo, ECA up-regulates the expressions of NQO1, HO-1, Nrf2, p-AKT, BCL-2, AKT, and IL-6. Additionally, sarosiensin V increases the viability of APAP-induced HepG2 cells and restores liver function activity.
The main health conditions this plant is used for are shown in the list below.
- acetaminophen-induced liver injury
- bile related diseases
- drug-induced liver injury
- inflammation of liver tissues
- liver related diseases
What are the herbal preparations of this plant?
This plant is used to create medicinal herbal preparations such as decoctions, infusions, and concentrated extracts to treat various ailments. Practitioners often boil the roots or leaves in water to form a decoction used for systemic issues. Infusions made from the softer plant parts are frequently prepared to soothe digestive discomfort or inflammation. Additionally, specialized extracts are developed to standardize the dosage of active phytochemicals for more potent therapeutic effects. These different methods allow for the targeted delivery of the plant's bioactive compounds depending on the specific health concern.
The main herbal preparations of this plant are shown in the list below.
- Since the list provided in your prompt only contains the word "extract," there are no specific medicinal preparations mentioned to extract from. Please provide the full list.
What side effects this plant can have?
This plant can cause severe liver damage due to the accumulation of toxic pyrrole metabolites in hepatic tissues. These specialized compounds, known as pyrrolizidine alkaloids, are processed by the liver into highly reactive intermediates. As these metabolites build up, they cause progressive cellular destruction and can lead to hepatic veno-occlusive disease. Such physiological changes often result in irreversible scarring and chronic liver dysfunction in affected individuals. Constant exposure to these substances poses a significant risk of systemic toxicity and organ failure.
According to a study published by "The American journal of Chinese medicine", Crotalaria assamica contains high concentrations of pyrrolic metabolite in the livers of mice. These metabolites were detected following a single oral dose of extracts of C. assamica. This accumulation of pyrrole metabolites was not demonstrated in the case of the Eupatorium species. The plant also showed higher concentrations of pyrrolizidine alkaloid compared to the Eupatorium species.
The main side effects this plant can have are shown in the list below.
- hepatic pyrrole metabolite accumulation
What herbs are paired with Crotalaria assamica?
This plant Crotalaria assamica is traditionally paired with herbs such as Zingiber officinale and Curcuma longa to enhance its medicinal properties in folk remedies.
The addition of ginger helps to balance the plant's internal potency while stimulating circulation during administration. Turmeric is frequently used alongside it to provide synergistic anti-inflammatory effects for treating skin ailments or digestive issues. These combinations are often prepared as decoctions or topical pastes depending on the specific ailment being addressed.
Local healers select these specific botanical partners to stabilize the bioactive compounds found within the Crotalaria leaves and roots.