Euphorbia tirucalli
Euphorbia tirucalli · Accepted scientific name
Scientific literature: Very Sparse (4 studies) · ★☆☆☆☆
Euphorbia tirucalli is a versatile plant known for its diverse range of biological activities, including antitumor, ACE-inhibitor, and abortifacient properties. The plant contains potent chemical compounds such as euphol and phorbol esters, which play significant roles in its medicinal profile. Researchers have focused on its potential to treat various conditions, including cancer—specifically breast cancer—and infections caused by Plasmodium falciparum. To study these effects, scientists primarily utilize the stem and root to create preparations like crude extracts, ethanol extracts, and the plant's characteristic latex. However, caution must be exercised as these same components can act as a powerful irritant to human tissue.
- Synonyms
- Arthrothamnus Tirucalli · Euphorbia Suareziana · 9 more
- Common names
- Not available
- Family
- Euphorbiaceae
- Distribution
- Not available
- Plant Parts
- Root · Stem
Classification
Common Names
Euphorbia tirucalli is a fascinating succulent known by many different names across the globe. It is frequently referred to as the African milkbush or simply the Milk bush in various regions. Some gardeners and botanists also recognize it as the Indian Tree Spurge. Due to its unique appearance, it is commonly called the Pencil Cactus. Furthermore, the plant is often identified as Latex-Wolfsmilch, reflecting its distinctive sap.
Sources: Catalogue of Life (COL)
Synonyms
Euphorbia tirucalli is a plant known by several different scientific names within the botanical community. This species is frequently identified by its synonym Arthrothamnus tirucalli in various taxonomic records. It is also recognized under the names Euphorbia geayi and Euphorbia laro. Furthermore, the plant is associated with the synonym Euphorbia media. Finally, the classification extends to include the specific variety known as Euphorbia media var. bagshawei.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Euphorbia tirucalli belongs to the diverse kingdom Plantae, showcasing the vast complexity of the natural world. Within this kingdom, it is categorized under the class Equisetopsida, reflecting its fundamental biological structure. The plant is further classified into the order Malpighiales, placing it among a significant group of flowering plants. It finds its specific place within the family Euphorbiaceae, a group known for its unique characteristics. Finally, it is identified by its specific genus, Euphorbia, which defines its close evolutionary relatives.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Malpighiales |
| Family | Euphorbiaceae |
| Genus | Euphorbia |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Euphorbia tirucalli maintains a broad geographical presence across several key regions of the African continent. Within East Tropical Africa, this species is widely distributed through the landscapes of Kenya, Tanzania, and Uganda. Its reach also extends toward the Atlantic, where it can be found inhabiting the Macaronesian islands. Specifically, the plant thrives in the unique environments of both the Canary Islands and Cape Verde. This diverse range highlights the plant's remarkable ability to adapt to various African climates and island ecosystems.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Euphorbia tirucalli is a versatile plant characterized by its distinct shrub growth form. As a self-supporting species, it maintains its structure naturally without the need for external assistance. The plant exhibits significant size variability, with heights ranging from a mere 0.2 m to a maximum of 9 m. Depending on environmental conditions, it can frequently be found reaching a substantial height of at least 4.33 m. This wide range of dimensions makes it a dynamic addition to various landscapes.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Euphorbia tirucalli is a versatile plant known for its diverse pharmacological properties and traditional medicinal uses. Research indicates that its latex possesses significant antineoplastic effects, particularly in reducing the viability of melanoma cells and inhibiting lung metastasis. Furthermore, extracts from the plant have demonstrated antiproliferative activity against breast cancer cell lines by inducing cell cycle arrest and apoptosis. These findings support its frequent ethnobotanical classification as a potent antitumor agent in various global medicinal practices. However, it is important to note that the plant also contains highly unsaturated diterpene esters that act as a significant irritant.
Compounds
Euphorbia tirucalli is a medicinal plant recognized for its diverse profile of bioactive secondary metabolites. Research indicates that the plant contains significant amounts of terpenes and flavonoids, which contribute to its antiproliferative effects against breast cancer cells. A key constituent found within the plant's sap is euphol, a tetracyclic triterpene that demonstrates notable anti-cancer and anti-inflammatory properties. Furthermore, the latex of this species contains highly unsaturated phorbol esters, which are known for their irritant characteristics. Together, these various chemical components highlight the complex pharmacological potential of the species.
Conditions
Euphorbia tirucalli demonstrates diverse medicinal potential, such as its ability to treat B16/F10 melanoma cells by reducing cell viability and lung metastasis. The plant also acts as a promoter of CYP3A4 induction, specifically through PXR-mediated expression in HepG2 cells. Regarding neurological health, its constituent euphol provides therapeutic effects against GBM by inducing autophagy and sensitizing cells to cytotoxicity. Additionally, extracts from the root of the plant have shown antiplasmodial activity against Plasmodium falciparum. Finally, Euphorbia tirucalli exhibits antifungal properties against T. interdigitalis, particularly when delivered via polymeric nanoparticles.
Preparations
Euphorbia tirucalli is prepared as latex, which contains bioactive diterpene esters and has been studied for its antineoplastic and nephrotoxic effects. The plant is also prepared as a crude extract, which has demonstrated in vitro antifungal activity against clinical isolates. Researchers have utilized Euphorbia tirucalli as ethanol extracts to evaluate the potential induction of CYP3A4 gene expression in HepG2 cells. Furthermore, the species is prepared as a methanolic extract for formulation into polymeric nanoparticles to improve antifungal efficacy. These various preparations highlight the diverse pharmacological applications and chemical compositions of the plant.
Parts used
Euphorbia tirucalli is a medicinal plant that has long been utilized in traditional African medicine for various therapeutic purposes. Scientific investigations have demonstrated that the root of this species possesses significant antiplasmodial activity against Plasmodium falciparum. Additionally, the stem of the plant serves as a critical source for research into modern oncological treatments. Studies show that extracts derived from these stems can inhibit the proliferation of specific breast cancer cell lines. These findings highlight how different parts of the plant contribute to its diverse pharmacological potential.