Sida rhombifolia

What's the taxonomical classification of Sida rhombifolia?

Sida rhombifolia belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this group, it is categorized under the class Equisetopsida and the subclass Magnoliidae. Following its taxonomic progression, it falls under the order Malvales and is a member of the family Malvacaceae. Finally, the plant is defined by its specific genus, Sida, and its unique species designation, rhombifolia.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Malvales
Family Malvaceae
Genus Sida
Species rhombifolia
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Sida rhombifolia has an erect, herbaceous or subshrubby habit characterized by rhombic-shaped leaves, small yellow flowers, and cylindrical schizocarps. The leaves are typically arranged alternately along the stem and possess an obtuse or acute apex with entire margins. Its flowers are actinomorphic and emerge from the axils, displaying five distinct petals that form a bright yellow corolla. The stems are often woody at the base and can exhibit slight pubescence depending on the specific variety. Each fruit is a small, nut-like capsule that splits into five distinct segments upon maturity.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to the tropical and subtropical regions of Southeast Asia, specifically spanning across countries such as Thailand, Vietnam, Malaysia, and parts of Indonesia. It thrives primarily in moist, lowland environments and along the edges of forest habitats where sunlight is filtered. Its distribution is closely linked to humid climates that support dense vegetation growth. The species is frequently found in disturbed sites or near riverbanks where soil moisture remains consistent. Because it favors these specific ecological niches, its presence is most concentrated within the equatorial belt of the Asian continent.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, commonly known as Sida rhombifolia, requires well-draining soil and full sunlight to thrive in tropical or subtropical climates.

It is typically cultivated from seeds or through stem cuttings planted during the warm growing season. Because it is a hardy perennial, it can tolerate various soil types as long as moisture does not collect around the roots. Regular weeding is necessary to prevent competition, though the plant is generally self-sufficient once established.

Many gardeners grow it specifically for its medicinal properties or its ability to provide ground cover in sunny areas.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant Sida rhombifolia utilizes its leaves, roots, stems, and aerial parts for various medicinal applications. The leaves are frequently prepared as infusions or poultices to treat inflammatory conditions and skin irritations. Its roots are highly valued in traditional medicine for their ability to act as an antipyretic or to soothe digestive issues. The stem can be processed to extract compounds used in topical treatments for swelling. All aerial parts of the herb are often harvested together to create decoctions used to manage fever and coughs.

According to a study published by "Journal of ethnopharmacology", Sida rhombifolia was identified as one of the most widely used species among the 46 plant species and 28 families studied. The research involved 18 individual and focus group discussions along with 74 individual interviews conducted at three study sites. While the study noted that leaves with succulent stems were the most used part of the plant, it specifically listed Sida rhombifolia as a prominent species used by the Maale and Ari ethnic communities. The findings showed that the number of medicinal plant species used was significantly influenced by gender and site, with Jaccard's similarity indices being less than 0.25.

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

  • leaves
  • root
  • stem
  • aerial parts
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, known as Sidar or Sidha, is used in the Ayurvedic and Siddha medicinal systems to treat various ailments such as skin diseases, inflammation, and digestive issues. In the Ayurvedic tradition, practitioners often utilize its leaves and roots to balance bodily humors and promote healing. Similarly, the Siddha system employs the plant to address specific systemic imbalances through its natural bioactive properties. Historically, different parts of the herb have been prepared as decoctions or pastes to facilitate topical and internal applications. These ancient practices highlight the long-standing cultural significance of the species in South Asian traditional medicine.

According to a study published by "Medicines (Basel, Switzerland)", Sida rhombifolia is an ethnomedicinal plant of the Malvaceae family commonly used in the Indian traditional system of medicines such as Ayurveda and Siddha. Tribal populations of India have traditionally used this plant in the form of extracts, powder, or paste. These applications were directed at treating common ailments including cough and cold, fever, stomach, kidney and liver disorders, pains, inflammations, and wounds. The study provides an overview of phytochemistry and ethnopharmacological research regarding these plants.

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

  • Ayurveda
  • Siddha
Evidence Level: ★★★☆☆

What are the pharmacological activities of Sida rhombifolia?

This plant has anti-inflammatory, anti-oxidant, anti-proliferative, anti-cancer, and anti-tumor pharmacological activities. Its ability to reduce oxidative stress makes it a potent source of anti-oxidant compounds that protect cells from damage. The presence of bioactive constituents allows it to inhibit the growth of abnormal cells through anti-proliferative mechanisms. These biological actions contribute significantly to its potential as an anti-cancer and anti-tumor agent in various studies. Such diverse properties highlight its importance in medicinal research and therapeutic development.

According to a study published by "Immunopharmacology and immunotoxicology", the antioxidant potential of Sida rhombifolia extracts was investigated over 30 days in adjuvant induced arthritis experimental rats. The oral administration of root and stem extracts of Sida rhombifolia significantly increased the levels of thiobarbituric acid reactive substances along with the activities of catalase and glutathione peroxidase. Additionally, these extracts decreased the levels of reduced glutathione and superoxide dismutase activity in the arthritis induced rats. The study also found that the elevated rate of erythrocyte sedimentation was significantly reduced by Sida rhombifolia extracts, reverting altered hematological parameters to near normal levels. Free radical scavenging activity of the plant was further evidenced through histological and transmission electron microscopy observations of hind limb tissue.

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

  • anti-inflammatory
  • anti-oxidant
  • anti-proliferative
  • anticancer
  • antitumor
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains the medicinal compounds rhombifoliamide, vasicine, vasicinone, cryptolepine, and cryptolepinoone. These specific alkaloids are primarily categorized as quinazoline derivatives found within the plant's chemical profile. Research indicates that these substances contribute to the various pharmacological activities attributed to the species. Scientists study these molecules to understand their potential roles in therapeutic applications. The presence of such bioactive constituents makes the plant a subject of interest in phytochemical investigations.

According to a study published by "Natural product research", an investigation of the EtOH/H2O (7:3) extracts of Sida rhombifolia L. yielded a previously undescribed ceramide named rhombifoliamide (1) and a xylitol dimer (2) isolated for the first time. The plant also contains 13 known compounds, which include oleanolic acid (3), beta-amyrin glucoside (4), ursolic acid (5), beta-sitosterol glucoside (6), tiliroside (7), 1,6-dihydroxyxanthone (8), a mixture of stigmasterol (9) and beta-sitosterol (10), cryptolepine (11), 20-Hydroxyecdysone (12), (E)-suberenol (13), thamnosmonin (14) and xanthyletin (15). Testing against Plasmodium falciparum strains showed that samples demonstrated activities against 3D7 with IC50 values of 0.18-20.11 µg/mL. Additionally, activities were observed against the Dd2 strain with IC50 values ranging from 0.74-63.09 µg/mL.

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

  • rhombifoliamide
  • vasicine
  • vasicinone
  • kaempferol
  • oleanolic acid
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for treating arthritis, inflammation, pains, stomach disorders, and wounds. Its medicinal properties are frequently applied to soothe joint discomfort and reduce swelling in various parts of the body. People also utilize its extracts to alleviate various types of physical pains and internal stomach disorders. When applied topically, it serves as an effective remedy for healing open wounds. These diverse therapeutic applications make it a significant resource in traditional medicine.

According to a study published by "Immunopharmacology and immunotoxicology", Sida rhombifolia extracts were investigated for 30 days for their potential against adjuvant induced arthritis in experimental rats. The plant was studied for its ability to address disease conditions like arthritis, hemorrhagic shock, atherosclerosis, diabetes, hepatic injury, aging, ischemia, reperfusion injury, gastritis, tumor promotion, neurodegenerative diseases and carcinogenesis. In the study, the extracts reverted altered hematological parameters to near normal levels, specifically significantly reducing the elevated rate of erythrocyte sedimentation. Oral administration of the root and stem extracts significantly increased thiobarbituric acid reactive substances and the activities of catalase and glutathione peroxidase. Additionally, the extracts decreased the levels of reduced glutathione and superoxide dismutase activity in the arthritis induced rats.

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

  • arthritis
  • inflammations
  • pains
  • stomach disorders
  • wounds
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is utilized to create medicinal preparations including EtOAc extract, EtOH/H2O (7:3) extracts, paste, and powder. Researchers often employ ethyl acetate to isolate specific bioactive compounds from the plant material. The addition of water to ethanol in a 7:3 ratio allows for the extraction of a broader range of polar constituents. For topical applications, the plant matter can be processed into a concentrated paste. Additionally, the dried components are frequently milled into a fine powder for various traditional therapeutic uses.

According to a study published by "Asian Pacific journal of cancer prevention : APJCP", Sida rhombifolia contains biologically active compounds that may be developed into anticancer drugs. The EtOAc extract was found to be more cytotoxic against HepG2 cells with an IC50 of 364.3 µg/mL compared to the MeOH extract at 720.2 µg/mL and the HEX extract at 560.4 µg/mL. HPLC analysis of the phenolic compounds revealed Epicatechin at 1.3 mg/g. Using a concentration of 300 μg/mL, the EtOAc extract induced 34% apoptosis in HepG2 cells. This EtOAc extract at 300 μg/mL also increased the Bax/BCL-2 ratio through the upregulation of the proapoptotic gene Bax.

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

  • EtOAc extract
  • EtOH/H2O (7:3) extracts
  • paste
  • powder
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can cause nausea, vomiting, diarrhea, abdominal pain, allergic reactions, and dizziness in some individuals. These gastrointestinal issues often manifest shortly after consumption of the plant material. Some people may also experience skin irritation or respiratory distress as part of an allergic reaction. Dizziness is another potential neurological side effect that should be monitored closely. It is essential to exercise caution when using this species due to these diverse health risks.

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

  • Nausea
  • Vomiting
  • Diarrhea
  • Abdominal pain
  • Allergic reactions
  • Dizziness
Evidence Level: ★☆☆☆☆

What herbs are paired with Sida rhombifolia?

This plant Sida rhombifolia is frequently paired with herbs like licorice root, dandelion, and ginger to enhance its traditional medicinal properties.

When combined with licorice, the plant's bitter profile is balanced, making it easier to consume in decoctions. Pairing it with dandelion root can help amplify its natural diuretic and detoxifying effects on the body. Ginger is often added to these herbal blends to improve digestion and provide a warming sensation during use.

These specific combinations are used in various traditional practices to target inflammation and digestive health.

Evidence Level: ★☆☆☆☆