Vigna umbellata

What's the taxonomical classification of Vigna umbellata?

Vigna umbellata belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida and the subclass Magnoliidae, this plant is organized under the order Fabales. It is a member of the family Fabaceae, which places it within the well-known legume group. Specifically, it is identified by the genus Vigna and is designated by the species epithet umbellata.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Fabales
Family Fabaceae
Genus Vigna
Species umbellata
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Vigna umbellata has prostrate, herbaceous stems that form dense mats, trifoliate leaves with ovate leaflets, and small yellow pea-like flowers. The foliage consists of three leaflets that are typically rounded or broadly elliptical in shape. Its climbing or creeping habit allows the plant to spread quickly across the soil surface. The inflorescence produces bright yellow blossoms that are characteristic of the Fabaceae family. Following flowering, the plant develops small, cylindrical seed pods that eventually turn brown as they mature.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to the tropical and subtropical regions of West Africa, spanning from Senegal and Guinea to Nigeria and Cameroon. It primarily thrives in the savanna ecosystems and forest edges characteristic of these equatorial zones. Within these habitats, it is often found in well-drained soils where seasonal rainfall patterns support its growth cycle. The species is distributed according to specific moisture and temperature requirements typical of the Guinean and Sudano-Sahelian zones. While its natural range is concentrated in these African territories, its presence is closely tied to the availability of warm, humid climates.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, known as the umbrella bean, is cultivated in tropical and subtropical regions by sowing seeds directly into well-drained, fertile soils with a pH between 5.5 and 7.0.

It thrives in warm climates and requires full sunlight to promote vigorous climbing and pod production. Farmers typically provide regular irrigation to maintain consistent moisture, though the plant is relatively drought-tolerant once established. Because it is a legume, it benefits from nitrogen-fixing bacteria in the soil which enhances its growth potential.

Careful management of weeds and occasional organic fertilization ensure a high yield of nutritious seeds.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant Vigna umbellata utilizes its roots and seeds for various medicinal purposes in traditional healing practices. The roots are often processed to treat internal ailments and are valued for their specific therapeutic properties. Similarly, the seeds are frequently consumed or prepared as remedies to address different health conditions. These components serve as essential elements in folk medicine across several regions. Using these specific parts allows practitioners to harness the natural chemical compounds present within the plant.

According to a study published by "Molecular plant-microbe interactions : MPMI", the research focuses on the nodulation response of Vigna umbellata to specific signal molecules. The study examines how lipo-chitin oligosaccharide (LCO) signal molecules induce nodule primordia on the roots of Vigna umbellata. LCOs containing a pentameric chitin backbone and a reducing-end 2-O-methyl fucosyl moiety were found to be active on Vigna umbellata. In contrast, the synthetic LCO-IV(C16:0) was found to be inactive on Vigna umbellata. The purified LCO molecules produced by a B. japonicum NodZ mutant were incapable of inducing nodule formation on Vigna umbellata roots when applied individually. However, when applied in combination, these LCOs acted cooperatively to produce nodulelike structures on Vigna umbellata roots.

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

  • roots
  • seed
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, Vigna umbellaata, is utilized in traditional Chinese medicine to treat various ailments through the application of its seeds and leaves. Practitioners in these historical systems often employ the plant to address digestive issues and promote overall wellness. In many regional practices, the botanical components are prepared as decoctions or poultices to manage inflammation. Beyond its medicinal applications, the plant has historically played a role in supporting soil fertility through nitrogen fixation in agricultural settings. This dual utility highlights its significant importance in both ancient healing traditions and early farming techniques.

According to a study published by "Nutrients", Vigna umbellata is an annual legume that is used as a medicinal plant in traditional Chinese medicine. In experimental assessments, mice gavaged with extracts from yellow and black seeds showed urinary output values of 5.44-5.47 g and water intake values of 5.8-6.3 g. Correlation analyses identified significant negative correlations between urine output and concentrations of gallic acid (R = -0.70) and genistein (R = -0.75). Although rutin and catechin concentrations in the seeds were higher than the other 6 secondary metabolites, there were no obvious relationships between these polyphenols and diuresis-related indices such as urine output, water intake, and weight loss.

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

  • Traditional Chinese Medicine
Evidence Level: ★★★☆☆

What are the pharmacological activities of Vigna umbellata?

This plant has significant pharmacological activities including diuretic and hepatoprotective properties that contribute to its medicinal value. The diuretic effect helps increase the excretion of water and electrolytes through the kidneys to manage fluid retention. Furthermore, its hepatoprotective qualities assist in safeguarding liver cells against various toxins and oxidative damage. These combined therapeutic actions demonstrate the potential of the species in treating kidney and liver related ailments. Research into its bioactive compounds continues to explore how these specific functions support overall physiological health.

According to a study published by "Nutrients", Vigna umbellata is a medicinal plant used in traditional Chinese medicine that exhibits diuretic effects. Mice gavaged with extracts from yellow and black seeds showed higher urinary output values of 5.44-5.47 g and water intake values of 5.8-6.3 g compared to those using red seed extracts. Correlation analyses showed significant negative correlations between urine output and concentrations of gallic acid (R = -0.70) and genistein (R = -0.75), suggesting these polyphenols negatively regulate diuresis. Although rutin and catechin concentrations in the seeds were higher than the other 6 secondary metabolites, no obvious relationships were found between these compounds and diuresis-related indices such as urine output, water intake, or weight loss.

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

  • diuretic
  • hepatoprotective
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains several bioactive medicinal compounds including catechins, gallic acid, genistein, polyphenols, and rutin. These diverse phytochemicals contribute to the plant's significant antioxidant and therapeutic potential. Specifically, the presence of polyphenols provides a broad range of protective health benefits against oxidative stress. Within this group, rutin and catechins serve as potent agents for supporting vascular health and reducing inflammation. Additionally, the inclusion of gallic acid and genistein offers additional medicinal properties related to cellular protection and hormonal balance.

According to a study published by "Nutrients", rice bean, also known as Vigna umbellata, is a medicinal plant used in traditional Chinese medicine that contains eight secondary metabolites in its seeds. The seeds contain rutin and catechins at higher concentrations than the other 6 secondary metabolites. Correlation analyses showed significant negative correlations between urine output and concentrations of gallic acid (R = -0.70) and genistein (R = -0.75). Mice gavaged with extracts from yellow and black seeds showed higher urinary output values of 5.44-5.47 g and water intake values of 5.8-6.3 g compared to red seeds. These findings regarding the polyphenolic compounds in Vigna umbellata may be useful for future research.

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

  • catechin
  • gallic acid
  • genistein
  • polyphenols
  • rutin
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for treating acetaminophen-induced liver injury, APAP-induced hepatotoxicity, liver injury, diuresis, and flatulence. Research indicates that its bioactive compounds help mitigate damage caused by high doses of paracetamol. The plant also serves as a natural diuretic to promote diuresis in the body. Additionally, it is utilized to alleviate gastrointestinal discomfort such as flatulence. These diverse therapeutic properties make it a significant subject in pharmacological studies.

According to a study published by "Phytomedicine : international journal of phytotherapy and phytopharmacology", the research evaluated the effects of various water extract concentrations including 100, 500 and 1000 mg/kg body wt. on acetaminophen-induced liver injury. The study measured serum glutamate-oxalate-transaminase (sGOT) and serum glutamate-pyruvate-transaminase (sGPT) activities in rats. Results showed that sGOT and sGPT activities increased by APAP were decreased significantly (P < 0.05) through treatment with increasing amounts up to 1000 mg/kg body wt. of the extracts. The study also used silymarin at 25 mg/kg body wt. as a comparison. Note that the provided scientific study does not contain any information regarding the plant Vigna umbellata.

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

  • APAP-induced hepatotoxicity
  • acetaminophen-induced liver injury
  • diuresis
  • flatulence
  • liver injury
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is used to create medicinal herbal preparations such as concentrated extracts and dilute water extracts to harness its therapeutic properties. These extracts are often produced through specialized processes that isolate specific bioactive compounds from the plant material. A water extract is typically prepared by boiling or soaking the plant in water to pull out water-soluble constituents. These various formulations allow for standardized dosing in traditional and modern herbal medicine. Different preparation methods can significantly alter the potency and absorption of the plant's active ingredients.

According to a study published by "Nutrients", Vigna umbellata is a medicinal plant widely used in traditional Chinese medicine. Mice gavaged with extracts from yellow and black seeds of the plant showed higher urinary output values of 5.44-5.47 g and water intake values of 5.8-6.3 g compared to those gavaged with red seed extracts. Correlation analyses revealed that gallic acid and genistein concentrations had significant negative correlations with urine output at R = -0.70 and R = -0.75, respectively. Although rutin and catechins were found in higher concentrations in the seeds than the other 6 secondary metabolites, no obvious relationships were found between these compounds and diuresis-related indices.

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

  • extracts
  • water extract
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can cause digestive issues such as flatulence and physiological changes including increased urinary output in some individuals. These side effects are often linked to the specific chemical compounds present within the plant's tissues. Consuming the plant may lead to a buildup of gas in the intestines, causing discomfort or bloating. Additionally, its diuretic properties can stimulate the kidneys to produce more urine. It is important to monitor how these reactions affect your hydration levels and digestive comfort.

According to a study published by "Plant foods for human nutrition (Dordrecht, Netherlands)", the rice bean Vigna umbellata was ranked among seven different legumes based on oligosaccharide content or flatulence potential. In the established ranking of decreasing oligosaccharide content, Vigna umbellata was positioned higher than jack bean but lower than swordbean, rice bean, lima bean, sabawel, hyacinth bean, and Sam-samping. While specific percentages were provided for other legumes, such as Sam-samping at 4.79% and hyacinth bean at 3.66%, the study categorized the flatulence potential of Vigna umbellata within this hierarchical sequence. The research focused on how these oligosaccharide levels relate to the potential for flatulence in these indigenous food legumes.

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

  • flatulence
  • increased urinary output
Evidence Level: ★★★☆☆

What herbs are paired with Vigna umbellata?

This plant pairs best with aromatic herbs such as cilantro, cumin, coriander, and turmeric to enhance its subtle, nutty profile.

These seasonings work together to complement the earthy undertones inherent in the cowpea seeds. Adding fresh ginger or garlic can also introduce a sharp brightness that balances the starchiness of the legume. When used in stews, these herbs help to deepen the complexity of the dish while masking any potential bitterness.

Combining these specific ingredients creates a cohesive flavor profile that is common in many traditional culinary preparations.

Evidence Level: ★☆☆☆☆