Semecarpus anacardium

What's the taxonomical classification of Semecarpus anacardium?

Semecaarpus anacardium belongs to the kingdom Plantae and is classified within the phylum Streptophyta. At the class level, it is situated in Equisetopsida, falling under the subclass Magnoliidae. Its taxonomic lineage continues through the order Sapindales and the family Anacardiaceae. Ultimately, this plant is defined by its specific placement within the genus Semecaarpus, with its unique biological identity represented by the species name anaแคrdium.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Sapindales
Family Anacardiaceae
Genus Semecarpus
Species anacardium
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Semecaarpus anacardium has large, woody, drupaceous fruits characterized by a thick, fibrous pericarp and a single, kidney-shaped seed embedded in a fleshy receptacle. The tree features spreading, woody branches with simple, alternate leaves that are typically elliptic or oblong in shape. These leaves possess an entire margin and a coriaceous texture, often displaying a prominent midrib and pinnate venation. The foliage is generally dark green and glossy on the upper surface, while the underside may appear slightly paler. Small, inconspicuous flowers are produced in axillary clusters, eventually developing into the characteristic nut-like fruit.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to the tropical regions of Southeast Asia, spanning across countries such as Thailand, Malaysia, Indonesia, and parts of southern China. It is primarily found in lowland rainforest environments and seasonal monsoon forests where moisture is abundant. The species often occurs in both primary forests and disturbed secondary habitats throughout its natural range. Its distribution is closely tied to the humid, equatorial climate zones of the Indo-Malayan realm. This specific ecological preference limits its presence to regions with consistent warmth and high annual rainfall.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, commonly known as the cashew tree, requires well-drained, sandy or loamy soils and a tropical climate with distinct wet and dry seasons to thrive.

It is typically propagated through seeds or grafting to ensure high-quality yields of cashew nuts and apples. Growers must ensure the trees receive ample sunlight and are protected from waterlogged conditions which can cause root rot. Regular pruning is essential to maintain tree structure and facilitate easier harvesting of the drupes.

Once established, these trees are quite drought-tolerant and can produce crops for several decades.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant Semecarpus anacardium offers various medicinal applications through its bark, fruit, leaf, nut, and root. The caustic juice from the fruit and nut is frequently utilized in traditional treatments for skin conditions and fungal infections. Extracts from the bark and roots are often prepared to address inflammatory issues and digestive ailments. Additionally, the leaves can be used in topical applications to soothe specific dermatological problems. Each component provides distinct chemical properties that contribute to its overall therapeutic value.

According to a study published by "BMC complementary and alternative medicine", the stem bark of Semecarpus anacardium possesses strong anti-diabetic and antioxidant potentials. The bark extract exhibited significant (p < 0.05) anti-diabetic activity by dose-dependently lowering TC, TG, and LDL levels. In the DPPH scavenging assay, the IC50 value of the SA extract was found to be 72.24 μg/ml. A survival rate of 100% was observed in rats of Group SA 400 after 15 days of treatment. The stem bark contains phytochemicals such as steroids, triterpenoids, flavonoids, glycosides, saponins, and tannins.

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

  • bark
  • fruit
  • leaf
  • nut
  • root
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, Semecarpus anacardium, is utilized in the Ayurvedic medicinal system to treat various ailments such as skin diseases, rheumatism, and respiratory issues. The seeds are processed into a specialized oil known as bhilawa oil, which serves as a potent therapeutic agent in traditional practices. Practitioners often apply this oil topically to alleviate joint pain and promote healing in certain dermatological conditions. Beyond its medicinal applications, the plant has historically been used in folk medicine across various regions of India for its antimicrobial properties. Its complex chemical composition makes it a significant subject of study within ancient pharmacological traditions.

According to a study published by "Phytomedicine : international journal of phytotherapy and phytopharmacology", Semecaarpus anacardium is one of the selected plants used in the herbal Ayurvedic medicine formulation known as Caps HT2. This formulation includes the methanolic extracts of the plant. The study evaluated the medicinal effects of the formulation containing Semecaarpus anacardium through various activities. The formulation's efficacy was tested using doses of 100, 200, 300, and 400 mg/kg. These tests were conducted over a period of 30 days in rats with diet-induced hyperlipidemia.

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

  • Ayurveda
Evidence Level: ★★★☆☆

What are the pharmacological activities of Semecarpus anacardium?

This plant has potent anti-inflammatory, anti-cancer, anti-oxidant, anti-bacterial, and anti-diabetic pharmacological activities attributed to its diverse bioactive compounds. Its high concentration of phenolic substances allows it to effectively neutralize free radicals and reduce oxidative stress in biological systems. Research indicates that specific extracts from the plant can inhibit the growth of various pathogenic bacteria and suppress tumor cell proliferation. Additionally, the phytochemical profile supports the management of blood glucose levels and helps mitigate systemic inflammatory responses. These multi-faceted properties position Semecarpus anacardium as a significant subject for future drug development.

According to a study published by "Recent patents on inflammation & allergy drug discovery", Semecaarpus anacardium is one of 5 medicinal plants used in the novel polyherbal formulation BHUx. This formulation consists of these plants used in a specific ratio that has never been tried collectively before. The study investigated the antioxidant, anti-inflammatory, hypo-lipidemic, and anti-proliferative properties of the BHUx formulation. These properties were studied on several experimental models using chemical tests, cell culture, in vitro models, and in vivo experiments with normal and transgenic animals. A separate pre-clinical toxicity study was also carried out to prove the safety margin in therapeutic doses.

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

  • anti-cancer
  • anti-inflammatory
  • antioxidant
  • antibacterial
  • antimicrobial
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains the medicinal compounds anacardoside, bhilawanols, tetrahydroamentoflavone, flavonoids, and glycosides. These chemical constituents contribute to the diverse therapeutic potential observed in Semecarpus anacardium. The presence of specific glycosides and flavonoids provides significant antioxidant and anti-inflammatory properties. Additionally, the unique bhilawanols and anacardoside play crucial roles in its traditional pharmacological applications. Research continues to investigate how tetrahydroamentoflavone interacts within biological systems to support healing processes.

According to a study published by "Phytochemistry", a new phenolic glucoside named anacardoside was isolated from the seeds of Semecaarpus anacardium. The structure and configuration of this compound were elucidated using a combination of NMR techniques. The chemical structure is identified as 1-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyloxy-3-hydroxy-5-methylbenzene. This specific medicinal compound is derived directly from the seeds of Semecaarpus anacardium.

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

  • anacardoside
  • bhilawanols
  • tetrahydroamentoflavone
  • flavonoids
  • glycosides
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for treating arthritis, diabetes mellitus, inflammation, liver cancer, and wound healing. Its medicinal properties are often utilized to reduce systemic inflammation and alleviate the joint pain associated with arthritic conditions. Researchers have also investigated its potential role in managing blood sugar levels for patients with diabetes mellitus. Furthermore, certain compounds within the plant show promise in supporting the healing of wounds and inhibiting the growth of liver cancer cells. These diverse therapeutic applications make it a significant subject in ethnopharmacology.

According to a study published by "Indian journal of experimental biology", Semecaarpus anacardium nut extract preparations are effective against many diseases such as arthritis, tumours, and infections. These preparations remain non-toxic even when administered at a high dose of 2000 mg/kg. The nuts contain various components including biflavonoids, phenolic compounds, bhilawanols, minerals, vitamins, and amino acids. Further controlled clinical studies are needed to verify the potent curative effect of the Semecaarpus anacardium nut extract against human ailments.

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

  • arthritis
  • inflammation
  • infections
  • liver cancer
  • wound healing
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Semecarpus anacardium, and its medicinal preparations include S. anacardium nut oil, aqueous extract, ethanolic extracts, monoherb, and water soluble fraction. The nut oil is frequently utilized for its topical applications, while ethanolic extracts are processed to isolate specific bioactive compounds. Researchers also utilize the aqueous extract and the water soluble fraction to study the plant's pharmacological properties in various biological models. These diverse preparations allow for a comprehensive exploration of the plant's therapeutic potential through monoherb administration. Such varied methods of extraction ensure that both polar and non-polar constituents are evaluated for medicinal efficacy.

According to a study published by "Phytotherapy research : PTR", Semecaarpus anacardium is frequently used in Ayurvedic medicine for the treatment of cancerous diseases. The nut oil of Semecaarpus anacardium prepared according to the Ayurvedic principle was found to have cytotoxic activity. This oil was cytotoxic only in leukaeamic cells among the four human tumour cell lines tested, which included HL-60, K-562, MCF-7, and HeLa. These herbal preparations were not cytotoxic towards normal human lymphocytes. The apoptosis induced by the phenolics present in Semecaarpus anacardium was found to be mediated by the activation of caspases.

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

  • S. anacardium nut oil
  • aqueous extract
  • ethanolic extracts
  • monoherb
  • water soluble fraction
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can cause severe health issues including contact dermatitis, gastrointestinal adverse events, localized irritation, a pro-inflammatory response, and systemic toxicity. The presence of caustic compounds often leads to painful skin irritation and allergic contact dermatitis upon direct exposure. If ingested, the plant frequently triggers gastrointestinal adverse events such as vomiting or abdominal distress. Furthermore, certain components can trigger a systemic pro-inflammatory response within the body's immune system. In high doses or through prolonged exposure, the chemical constituents can result in significant physiological toxicity.

According to a study published by "Regulatory toxicology and pharmacology : RTP", the mature fruit of Semecarpus anacardium L. f. is used as an Ayurvedic drug for treating ailments including cancer. However, the drug has been reported to cause irritation, blisters, toxicity, and contact dermatitis if it is used in its raw form. To address these issues, various methods for a purification process have been described in Ayurvedic texts to minimize these toxic effects. This study evaluated chemical profiles and anti-cancer activity using the Ehrlich Ascites Carcinoma (EAC) model in mice. The results indicated that the purification of Semecarpus anacardium imparted chemical changes to certain active compounds and enhanced its anti-cancer activity when compared to the raw sample.

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

  • contact dermatitis
  • gastroiintestinial adverse events
  • irritation
  • pro-inflammarotry response
  • toxicity
Evidence Level: ★★★☆☆

What herbs are paired with Semecarpus anacardium?

This plant, Semecarpus anacardium, is commonly paired with black pepper, ginger, and turmeric to enhance its therapeutic properties in traditional medicine.

These specific combinations are often used to balance the potent, caustic nature of the plant's oil during topical or internal applications. The addition of warming spices helps to mitigate irritation while potentially increasing the bioavailability of its active compounds. Practitioners frequently combine it with other bitter herbs to support digestive health or systemic detoxification.

This strategic blending serves to both stabilize the chemical potency and direct the plant's effects toward specific bodily systems.

Evidence Level: ★☆☆☆☆