Thevetia peruviana
What's the taxonomical classification of Thevetia peruviana?
Thevetia peruviana belongs to the kingdom Plantae and is categorized under the phylum Streptophyta. Within this classification, it is placed in the class Equisetopsida and the subclass Magnoliidae. Following its lineage further, it falls under the order Gentianales and is a member of the family Apocynaceae. Ultimately, the plant is identified by its genus, Thevetia, and its specific species name, peruviana.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Gentianales |
| Family | Apocynaceae |
| Genus | Thevetia |
| Species | peruviana |
What are the morphological characteristics of this plant?
Thevetia peruviana has an evergreen shrub or small tree habit characterized by narrow, lanceolate leaves and trumpet-shaped yellow flowers. The foliage consists of leathery, dark green leaves that are arranged in a spiral pattern along the woody stems. Its bright blossoms emerge from terminal clusters and feature a long, tubular corolla that flares at the tip. Small, fleshy drupes develop from the flowers, typically turning a dark color as they reach maturity. The plant often develops a dense, bushy structure as it grows in tropical environments.
What is the geographical distribution of this plant?
This plant is native to the tropical regions of Central and South America, specifically ranging from Mexico through much of the Caribbean and down to Brazil. It thrives in warm, humid climates where it can find ample sunlight and well-drained soil. Due to its ornamental value, it has been widely naturalized in many other tropical and subtropical areas around the world. Many gardeners plant it in regions like Florida, Southeast Asia, and parts of Africa to enjoy its bright yellow blooms. Consequently, its presence is now found far beyond its original evolutionary boundaries.
How is this plant cultivated?
This plant thrives in full sun and well-draining soil within USDA hardiness zones 10 through 11.
It requires regular watering during its establishment phase but can tolerate moderate drought once its root system is mature. To maintain its vibrant yellow flowers, gardeners should provide nitrogen-rich fertilizer during the active growing season. Pruning the shrub regularly helps control its size and encourages denser foliage.
It is important to handle this species with care because all parts of the plant are highly toxic if ingested.
What parts of this plant are used medicinally?
This plant Thevetia peruviana utilizes its fruit, leaves, and stem bark in various traditional medicinal applications. The leaves are frequently prepared as decoctions to treat skin ailments or used in topical applications for inflammatory conditions. Extracts from the stem bark are often employed in folk medicine to address specific gastrointestinal issues. The fruit components are also utilized in certain regional practices, though they require careful handling due to the plant's toxicity. These different parts provide a diverse range of bioactive compounds used by various cultures for healing purposes.
According to a study published by "The Medical journal of Australia", a case of fatal poisoning was described due to the presumed ingestion of leaves and/or fruit of the yellow oleander (Thevetia peruviana). The diagnosis for this fatal oleander poisoning was confirmed by radioimmunoassay. This specific process used antibodies of differential specificity towards cardiac glycosides. The study also draws attention to the potential usefulness of digoxin assay in suspected cases of oleander poisoning.
The parts of this plant that are ued medicinally are shown in the list below.
- fruit
- leaf
- stem bark
What traditional systems uses this plant?
This plant, Thevetia peruviana, has been utilized in various traditional medicine systems to treat diverse ailments such as skin diseases, digestive issues, and parasitic infections. In Traditional African Medicine, different parts of the plant are often prepared as decoctions or poultices to address localized infections and inflammatory conditions. Historically, practitioners in various tropical regions have employed the plant's potent chemical properties for both medicinal and ritualistic purposes. Because of its high toxicity, these traditional applications require precise knowledge and careful dosing to avoid accidental poisoning. The historical use of the plant highlights a complex relationship between botanical knowledge and the management of health in diverse cultural contexts.
According to a study published by "Journal of ethnopharmacology", Thevetia peruviana was identified as one of the most frequently used medicinal species among the 196 informants. This plant was reported by 25 individuals during the study conducted in Bwambara sub-county. While the study documented 67 medicinal plant species across 27 families and 62 genera, Thevetia peruviana ranked highly in frequency of use. The research utilized descriptive statistics and the Informant consensus factor to analyze data regarding the management of 39 conditions clustered into 10 International Classification of Primary Care disease categories.
The hystorical systems that uses this plant are shown in the list below.
- Traditional African Medicine
What are the pharmacological activities of Thevetia peruviana?
This plant has cardiotonic, anti-inflammatory, anticancer, antiproliferative, and cytotoxic pharmacological activities derived from its complex chemical profile. The presence of cardiac glycosides allows it to exert significant cardiotonic effects by influencing heart muscle contraction. Research indicates that its bioactive compounds also demonstrate potent anticancer and antiproliferative properties by inhibiting the growth of malignant cells. Furthermore, the plant exhibits strong cytotoxic actions that can lead to cell death in specific diseased tissues. These diverse therapeutic potentials are supported by its ability to reduce inflammation through various biochemical pathways.
According to a study published by "Journal of traditional and complementary medicine", Thevetia peruviana is used in traditional medicine to treat external wounds, infected areas, ring worms, and tumours. The fruit rind water extract showed a highest wound bed area reduction (WBS) of 1133 ± 111.4 g. In the excision model, the extracts achieved complete healing of the wound at day 14. The hydroxyproline content in dry granuloma tissue treated with fruit rind water (FW) and leaves hexane (LH) extracts increased to 65.73 ± 3.2 mg/g and 53.66 ± 0.38 mg/g, respectively. These extracts also caused an upregulation of GSH, catalase, SOD, and peroxidase, alongside the downregulation of the inflammatory marker (NO) and oxidative stress marker (LPO).
The primary pharmacological activities of this plant are shown in the list below.
- cardiotonic
- anti-inflammatory
- anticancer
- antioxidant
- antimicrobial
What medicinal compounds this plant contains?
This plant contains several potent medicinal compounds, most notably a group of cardenolide glycosides that function as cardiac glycosides to affect heart muscle contractions. These specific chemical constituents are responsible for the plant's significant physiological impact on the cardiovascular system. In addition to these glycosides, the plant also contains the unique compound known as thevefolin. Researchers study these diverse elements to understand their potential applications and inherent toxicity in pharmacological contexts. Understanding the precise chemical makeup of Thevetia peruviana is essential for both medical science and safety precautions.
According to a study published by "Journal of natural products", activity-guided fractionations of Thevetia peruviana led to the isolation of four cardenolide glycosides (1-4). In particular, cardenolide glycosides 1 and 2 from Thevetia peruviana were shown to have a significant reversal effect on TRAIL resistance in human gastric adenocarcinoma cells. Thevefolin (2) was found to enhance mRNA expression of death receptor 4 (DR4) and DR5. Additionally, 1H and 13C NMR characterizations are shown for thevefolin (2) for the first time.
The primary medicinal compounds of this plant are shown in the list below.
- cardenolide glycosides
- cardiac glycosides
- thevefolin
What health conditions is this plant used for?
This plant is used for treating cancer, tumors, tumours, external wounds, and ulcers. Various parts of the plant are prepared into medicinal extracts to target malignant growths and abnormal cell development. It is also applied topically to facilitate the healing of skin lesions and open sores. The chemical properties of the species help in cleaning and repairing external wounds effectively. Furthermore, its traditional applications include managing the symptoms and progression of gastric and skin ulcers.
According to a study published by "ACS omega", Thevetia peruviana is an ornamental herb of medicinal interest. It is extensively used as an antipyretic and anticancer agent due to the presence of cardiac glycosides. The plant material serves as a biosorbent with an adsorption capacity of 187.51 mg g-1 for Cu(II) in aqueous media at pH ∼ 5 and a temperature of 303 K. This process reaches equilibrium within 60 min with a rate constant of 2 × 10^3 mg g-1 min-1. The adsorption of Cu(II) on the plant rises from 59.29 to 197.63 mg g-1 as the pH increases from 2 to 7. Additionally, the adsorption increases from 176.80 to 191.33 mg g-1 as temperature rises from 293-308 K.
The main health conditions this plant is used for are shown in the list below.
- cancer
- tumors
- tumours
- external wounds
- ulcers
What are the herbal preparations of this plant?
This plant is Thevetia peruviana, a species used to create medicinal herbal preparations such as Thevetia peruviana leaf extract for various therapeutic purposes. These preparations often focus on the plant's complex cardiac glycosides, which can influence heart rate and rhythm. Researchers study these extracts to explore potential applications in treating cardiovascular conditions or managing specific inflammatory responses. However, because the chemical compounds are highly potent, precise dosage and careful processing are essential to avoid toxicity. Scientists continue to investigate how these different herbal formulations interact with human biological systems.
According to a study published by "Chemistry & biodiversity", Thevetia peruvania (Pers.) K. Schum. leaves contain cardiac glycosides and other bioactive constituents that have been traditionally used for various medicinal purposes. Metabolomic analysis of the leaf extract identified 52 compounds, including flavonoids, hydroxycinnamic acids, and fatty acids. When administered at doses of 12-24 mg/kg for 60 days, the extract caused a dose-dependent reduction in sperm motility and count. This preparation induces spermicidal effects through oxidative stress, apoptosis, and hormonal disruption. The study highlights the potential of the plant-based contraceptive, though toxicity at higher doses requires further investigation.
The main herbal preparations of this plant are shown in the list below.
- Thevetia peruviana leaf extract
What side effects this plant can have?
This plant can cause severe cardiotoxicity, fatal poisoning, and death due to its highly toxic chemical composition. Ingestion of its components often leads to life-threatening cardiac complications that can result in a rapid demise. Beyond its immediate effects on the heart, exposure is linked to reproductive damage such as a reduction in sperm count. Research also indicates that the plant can cause seminiferous tubule degeneration within the male reproductive system. These combined physiological impacts make the species extremely hazardous to human health.
According to a study published by "Tropical doctor", Thevetia peruviana, also known as yellow oleander, is identified as one of the commonly cardiotoxic herbs. This plant is part of herbomineral preparations that can produce cardiac arrhythmias such as ventricular ectopics, ventricular tachycardia, and various degrees of arteriovenricular (AV) blocks. In a report of 12 successive cases involving herbal drug ingestion, patients experienced dizziness, chest discomfort, and ventricular arrhythmias. Out of these 12 cases, 3 of the patients died. The study emphasizes the need for toxicological studies and standardization of plants like Thevetia peruviana before they are advocated for therapeutic use.
The main side effects this plant can have are shown in the list below.
- cardiotoxicity
- death
- fatal poisoning
- reduction in sperm count
- seminiferous tubule degeneration
What herbs are paired with Thevetia peruviana?
This plant, commonly known as yellow oleander, is traditionally paired with herbs like ginger, holy basil, and turmeric in certain ethnobotanical applications.
These combinations are often utilized in traditional medicine to balance the plant's potent chemical properties. Ginger is frequently included to mitigate potential gastrointestinal irritation caused by the plant's glycosides. Holy basil is sometimes added to provide complementary calming or respiratory benefits during topical or controlled preparations. Turmeric serves as an additional agent to assist with its perceived anti-inflammatory effects.
These specific pairings are carefully selected to manage the plant's high toxicity levels.