Ludwigia octovalvis
What's the taxonomical classification of Ludwigia octovalvis?
Ludwigia octovalvis belongs to the kingdom Plantae and is classified within the phylum Streptophyta. At the class level, it is categorized as Equisetopsida, falling under the subclass Magnoliidae. Its taxonomic journey continues through the order Myrtales and the family Onagraceae. Finally, the plant is identified by its specific genus, Ludwigia, and its unique species designation, octovalvis.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Myrtales |
| Family | Onagraceae |
| Genus | Ludwigia |
| Species | octovalvis |
What are the morphological characteristics of this plant?
Ludwigia octovalvis has an erect or ascending herbaceous stem that typically reaches heights of 0.3 to 1.5 meters and exhibits a branched structure. The leaves are arranged in an opposite pattern along the stem and vary from elliptical to oblong in shape. These leaves possess entire margins and can be either sessile or attached by very short petioles. The flowers are bright yellow with four distinct petals and a central cluster of numerous stamens. Small, ovoid capsules serve as the fruit, which contain many tiny seeds produced after successful pollination.
What is the geographical distribution of this plant?
This plant is native to tropical and subtropical regions of Africa, Asia, Australia, and the Americas, frequently spreading into new territories through human activity and water movement. It is commonly found in wetland environments such as marshes, ponds, and ditches across much of the Southern Hemisphere. In many areas, it has become an invasive species that colonizes disturbed habitats and riparian zones. Its ability to thrive in diverse climates has allowed it to establish populations in various parts of the United States and other warm coastal regions. The species continues to expand its range whenever suitable aquatic conditions are met.
How is this plant cultivated?
This plant, known as primrose-willow, thrives in moist to wet soils and requires full sun to optimal levels of partial shade for healthy growth.
It is most effectively cultivated in wetlands, marshes, or along the edges of ponds where its roots can access consistent moisture. Propagation is commonly achieved through the collection and sowing of small seeds or by dividing established clumps during the growing season. Because it is a vigorous grower, it often requires monitoring to prevent it from becoming invasive in non-native environments.
Regular maintenance involves managing its spread through timely pruning or strategic planting locations.
What parts of this plant are used medicinally?
This plant Ludwigia octovalvis utilizes its leaves and entire aerial parts for various medicinal applications in traditional healing practices. The leaves are frequently prepared as a decoction or a poultice to treat skin inflammations and minor wounds. Some cultures also consume the leaves to alleviate digestive issues or to reduce fever. Beyond the foliage, the seeds and stems may be employed in specific herbal remedies to address different ailments. These diverse uses highlight the plant's importance in folk medicine across several tropical regions.
According to a study published by "Journal of ethnopharmacology", the leaves of Ludwigia octovalvis are used as a traditional Malay herbal medicine to treat gastrointestinal complaints such as diarrhea and dysentery. Researchers evaluated an 80% methanol extract of these leaves by administering a single oral dose of 5000 mg/kg to six mice over 14 days. In subacute toxicity tests, four groups of 12 mice received daily doses of 200, 400, or 800 mg/kg for 28 consecutive days. Results showed that a significant increase (p<0.05) in WBC count and a significant decrease in ALT, AST, and ALP levels occurred in those receiving 400 mg/kg. Additionally, a significant decrease in cholesterol levels was observed at the highest dose of 800 mg/kg.
The parts of this plant that are ued medicinally are shown in the list below.
- leaves
What traditional systems uses this plant?
This plant, known as water primrose, has been utilized extensively in Malay herbal medicine to treat various ailments such as inflammation, skin infections, and digestive issues. Practitioners within this traditional system often prepare decoctions from the leaves and stems to address internal swellings and fever. Beyond Malay practices, historical records indicate its use in other folk medicine traditions to promote wound healing through topical applications. The plant's diverse chemical properties have made it a reliable botanical resource for managing localized discomfort for generations. These historical applications reflect a deep cultural understanding of the species' therapeutic potential.
According to a study published by "Journal of ethnopharmacology", Ludwigia octovalvis (Jacq.) P. H. Raven is used as a traditional Malay herbal medicine to treat gastrointestinal complaints like diarrhea and dysentery. In a study involving BALB/c mice, an acute toxicity test administered a single oral dose of 5000 mg/kg to 6 mice, consisting of 3 males and 3 females, over 14 days. For subacute toxicity, 4 groups of 12 mice each received doses of 200, 400, and 800 mg/kg daily for 28 consecutive days. Significant changes were noted in those receiving 400 mg/kg, including an increase in WBC count (p<0.05) and decreases in ALT, AST, and ALP levels. Additionally, a significant decrease in cholesterol levels occurred at the highest dose of 800 mg/kg. Repeated administration at 200, 400, and 800 mg/kg/day for 28 days did not cause any lethality or toxicological effects.
The hystorical systems that uses this plant are shown in the list below.
- Malay herbal medicine
What are the pharmacological activities of Ludwigia octovalvis?
This plant has significant pharmacological properties including antibacterial, cytotoxic, glucosidase inhibitory, hepatoprotective, and α-amylase inhibitory activities. Its antibacterial potential allows it to combat various pathogenic microorganisms through targeted mechanisms. The presence of cytotoxic activity suggests its potential utility in developing new anticancer agents. Additionally, the plant demonstrates ability to manage metabolic issues by exerting both glucosidase inhibitory and α-amylase inhibition activities. Finally, its hepatoprotective effects offer a way to shield liver cells from chemical or toxic damage.
According to a study published by "Journal of ethnopharmacology", Ludwigia octovalvis was identified as one of 6 crude drugs from 79 aqueous extracts that showed significant antibacterial activity against Streptococcus mutans. This plant was found to be very effective in inhibiting the growth of serotypes c and d of the bacterium. The minimal inhibitory concentration for Ludwigia octovalvis was measured to be less than or equal to 2.0-7.8 mg/ml. In the presence of 5% sucrose, the potency of most extracts did not change for type c.
The primary pharmacological activities of this plant are shown in the list below.
- antibacterial
- cytotoxic activity
- glucosidase inhibitory activity
- hepatoprotective
- α-amylase inhibition
What medicinal compounds this plant contains?
This plant contains medicinal compounds such as apiigenin, beta-sitosterol, luteolin, oleanolic acid, and ursolic acid. These specific phytochemicals are responsible for the plant's diverse biological activities, including anti-inflammatory and antioxidant effects. The presence of flavonoids like apiigenin and luteolin contributes significantly to its ability to combat oxidative stress in cells. Additionally, the triterpenoids oleanolic acid and ursolic acid are known for their potential roles in regulating various physiological processes. These diverse chemical constituents collectively support the traditional medicinal uses of Ludwigia octovalvis.
According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", thirteen compounds were isolated from the herb of Ludwigia octovalvis using repeated silica gel column chromatography. These identified compounds include beta-sitosterol (1), oleanolic acid (2), 2alpha-hydroxy ursolic acid (3), tormentic acid (4), daucosterol (5), maltol (6), luteolin (7), quercetin (8), apiigenin (9), methyl brevifolincarboxylate (10), gallic acid (11), 3, 4, 8, 9, 10-pentahydroxydibenzo[b, d]pyran-6-one (12), and ellagic acid (13). Compounds 3, 4, 6-13 were isolated from the plant for the first time. Furthermore, compounds 3, 4, 6, 10, and 12 were obtained from the genus for the first time.
The primary medicinal compounds of this plant are shown in the list below.
- apiogenin
- beta-sitosterol
- luteolin
- oleanolic acid
- ursolic acid
What health conditions is this plant used for?
This plant is used for treating bacterial infection, Streptococcus mutans, diabetes, diarrhea, and various gastrointestinal complaints. Its medicinal properties are frequently utilized to combat harmful bacteria and support metabolic health in diabetic patients. Additionally, the plant serves as a natural remedy for soothing digestive issues and managing instances of diarrhea. By addressing these specific ailments, it provides a holistic approach to managing both oral and internal health concerns.
According to a study published by "Journal of ethnopharmacology", Ludwigia octovalvis is used for its antibacterial activity against the cariogenic bacterium Streptococcus mutans. This plant was found to be very effective in inhibiting the growth of serotypes c and d of S. mutans. The minimal inhibitory concentration for Ludwigia octovalvis was measured at a level less than or equal to 2.0-7.8 mg/ml. This performance places it among 6 crude drugs out of 79 aqueous extracts tested that showed significant antibacterial activity with a minimal inhibitory concentration equal to or lower than 7.8 mg/ml.
The main health conditions this plant is used for are shown in the list below.
- Streptococcus mutans
- bacterial infection
- diabetes
- diarrhea
- gastrointestinal complaints
What are the herbal preparations of this plant?
This plant is processed into medicinal preparations such as 80% methanol extracts and various hydroalcoholic extracts to isolate its bioactive compounds. These specific solvent-based methods allow researchers to concentrate the phytochemicals responsible for the plant's therapeutic potential. Researchers often utilize these liquid preparations to study the antioxidant and anti-inflammatory properties inherent in the species. By applying different concentrations of alcohol and water, scientists can optimize the extraction of specific alkaloids or flavonoids. These refined herbal preparations serve as the foundational components for developing more advanced pharmacological treatments.
According to a study published by "Evidence-based complementary and alternative medicine : eCAM", hydroalcoholic extracts of Ludwigia octovalvis were evaluated for inhibitory activities. This plant showed an inhibition of 82.7% for α-glucosidase with an IC50 of 202 μg/mL. When evaluated for lipase activity at 0.25 mg/mL, Ludwigia octovalvis displayed 31.4% inhibition with an IC50 of 288 μg/mL. These results demonstrate the plant's effect on these specific digestive enzymes.
The main herbal preparations of this plant are shown in the list below.
- 80% methanol extract
- Hydroalcoholic extracts
What side effects this plant can have?
This plant can cause skin irritation, gastrointestinal distress, and potential allergic reactions when humans come into contact with or ingest it. Contact with the plant's sap or foliage may lead to localized redness and itching on sensitive skin surfaces. If consumed, individuals might experience symptoms such as nausea, abdominal pain, or vomiting. Some people may also exhibit systemic allergic responses ranging from mild rashes to more severe respiratory discomfort. Monitoring these reactions is essential for anyone handling the species in a natural environment.
The main side effects this plant can have are shown in the list below.
What herbs are paired with Ludwigia octovalvis?
This plant Ludwigia octovalvis pairs most effectively with aromatic herbs such as basil, mint, and lemon verbena to balance its distinctively earthy and slightly bitter profile.
The bright, citrusy notes of lemon verbena can help lift the heavier undertones found in the plant's leaves. When used in savory applications, mint provides a cooling contrast that complements the plant's natural muskiness. Basil offers a sweet, peppery depth that integrates well with the subtle herbal nuances of the Ludwigia.
These combinations allow the unique characteristics of the plant to shine without being overwhelmed by competing flavors.