Thespesia populnea
What's the taxonomical classification of Thespesia populnea?
Thespesia populnea belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it is categorized under the class Equisetopsida and the subclass Magnoliidae. Following the taxonomic hierarchy further, it resides in the order Malvales and the family Malvaceae. Finally, the plant is identified by its genus, Thespesia, and its specific species name, populnea.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Malvales |
| Family | Malvaceae |
| Genus | Thespesia |
| Species | populnea |
What are the morphological characteristics of this plant?
Thespesia populnea has simple, alternate, ovate to elliptical leaves with entire margins and a lustrous, dark green upper surface. The foliage typically measures between five to twelve centimeters in length and possesses a prominent midrib. Its woody stems develop into medium to large trees characterized by a thick, greyish bark. Small, trumpet-shaped flowers emerge in clusters, displaying a vibrant yellow color that transitions to a deep reddish-purple as they age. These blossoms are accompanied by globose, green fruits that mature into dark, velvety drupes containing several seeds.
What is the geographical distribution of this plant?
This plant is native to the tropical and subtropical regions of the Indo-Pacific, spanning from the coastal areas of East Africa through the Indian subcontinent to Southeast Asia and northern Australia. It thrives primarily in maritime environments such as sandy beaches, coastal forests, and riverbanks where moisture is abundant. Because it is highly salt-tolerant, the species frequently colonizes island habitats across the Pacific Ocean. Its distribution is closely tied to warm climates that prevent frost damage to its delicate foliage. Consequently, it is commonly found throughout the tropical belt where seasonal monsoons or consistent humidity support its growth.
How is this plant cultivated?
This plant requires full sunlight and well-draining, sandy or loamy soil to thrive in tropical or subtropical climates.
It grows best when provided with regular watering during its establishment phase and moderate moisture once mature. Because it is sensitive to frost, cultivators should protect the tree or select a frost-free location to ensure survival. Pruning is often necessary to maintain its shape and encourage vigorous new growth.
This species also benefits from organic mulching to help retain soil moisture and suppress competing weeds.
What parts of this plant are used medicinally?
This plant Thespesia populnea offers medicinal benefits through its bark, flowers, fruits, leaves, and roots. The bark is frequently utilized to treat skin conditions and inflammatory ailments due to its astringent properties. Medicinal preparations involving the flowers often aim to alleviate fever or soothe digestive issues. Both the leaves and the fruits are applied topically or ingested to address wounds and gastrointestinal discomfort. Additionally, the roots are processed to manage various systemic ailments in traditional healing practices.
According to a study published by "Phytomedicine : international journal of phytotherapy and phytopharmacology", various parts of Thespesia populnea possess medicinal properties such as antifertility, antibacterial, anti-inflammatory, antioxidant, purgative and hepatoprotective activity. The study specifically investigated the effects of the T. populnea bark using 312 mice divided into 52 different groups. The ethanolic extract of T. populnea was administered orally in three doses of 100, 200 and 400 mg/kg for 7 successive days. Results showed that doses of 200 and 400 mg/kg significantly improved memory and reversed amnesia induced by scopolamine at 0.4 mg/kg and diazepam at 1 mg/kg. Additionally, the bark extract reduced central cholinesterase activity and exhibited cholesterol lowering properties.
The parts of this plant that are ued medicinally are shown in the list below.
- bark
- flower
- fruit
- leaf
- root
What traditional systems uses this plant?
This plant, Thespesia populnea, is utilized in the Ayurvedic system of traditional medicine and various Indian medicinal practices to treat ailments such as skin diseases, inflammation, and digestive issues. The bark and leaves are frequently employed in traditional formulations to manage fever and promote wound healing. In many regional Indian customs, the tree holds significant ritualistic value and is often used in religious ceremonies. Various parts of the plant are processed into decoctions or pastes to address specific physiological imbalances according to ancient healing principles. These historical applications demonstrate the deep integration of the species into the cultural and medicinal fabric of South Asia.
According to a study published by "Pharmacognosy research", Thespesia populnea L. is a medicinal plant cultivated in South Gujarat that is used to treat cutaneous affections, psoriasis, ringworm, and eczema. The bark and fruits are indicated for diseases of the skin, urethritis, and gonorrhea, while the juice of the fruits is employed in treating certain hepatic diseases. This plant is a common component of many herbal and Ayurvedic formulations such as Kamilari and Liv-52. The plant is reported to contain several compounds including flavonoids, quercetin, kaempferol, gossypetin, Kaempferol-3-monoglucoside, β-sitosterol, kaempferol-7-glucoside, and gossypol.
The hystorical systems that uses this plant are shown in the list below.
- Ayurveda
- Indian system of traditional medicine
What are the pharmacological activities of Thespesia populnea?
This plant has demonstrated significant pharmacological activities including analgesic, anti-inflammatory, anti-ulcer, antibacterial, and antimicrobial properties. Its extracts serve to alleviate pain and reduce swelling by modulating inflammatory pathways in the body. The plant also exhibits protective effects on the gastric mucosa, making it useful for treating peptic ulcers. Furthermore, its potent antimicrobial and antibacterial qualities allow it to combat various pathogenic microorganisms effectively. These diverse medicinal capabilities highlight the therapeutic potential of Thespesia populnea in modern pharmacology.
According to a study published by "Pharmaceutical biology", the heartwood of Thespesia populnea is used for treating ulcer and colic pain. When mice were treated with extracts at 100 and 200 mg/kg, the aqueous extract significantly restored Hb concentration from 13.80 ± 0.5 to 17.20 ± 0.5. The aqueous extract also reduced MDA levels from 10.82 nm/mg and 10.25 nm/ml in tissue and blood to 2.69 nm/mg and 3.59 nm/ml, respectively. Furthermore, MP0 levels were reduced from 412 U/mg and 404 U/ml in tissue and blood to 205 U/mg and 219 U/ml through aqueous extract treatment. This aqueous extract of heartwood also significantly reduced protease activity that had been markedly increased.
The primary pharmacological activities of this plant are shown in the list below.
- analgesic
- anti-inflammatory
- anti-ulcer
- antibacterial
- antioxidant
What medicinal compounds this plant contains?
This plant contains a diverse array of bioactive medicinal compounds including gossypol, mansonoone E, thespesenone, thespesone, and the series of sesquiterpenoids known as populene A-H. These secondary metabolites are primarily concentrated within the leaves, bark, and seeds of the species. The presence of gossypol is particularly notable due to its significant biological activities and chemical properties. Additionally, the specific sesquiterpene derivatives like thespesenone and thespesone contribute to the plant's complex chemical profile. The various populene isomers further expand the medicinal potential of this botanical source.
According to a study published by "Pharmacognosy research", Thespesia populnea is reported to contain flavonoids, quercetin, kaempferol, gossypetin, Kaempferol-3-monoglucoside, β-sitosterol, kaempferol-7-glucoside, and gossypol. The plant contains quercetin and kaempferol, which were analyzed using a mobile phase of toluene: ethyl acetate: formic acid (6:4:0.3 v/v/v). Linear regression for quercetin showed a concentration range of 100-600 ng/spot with a correlation coefficient (R2) of 0.9955, while kaempferol showed a range of 500-3000 ng/spot with an R2 of 0.9967. Limits of detection and quantitation for quercetin were recorded as 32.06 and 85.33 ng/spot, respectively. For kaempferol, these limits were recorded as 74.055 and 243.72 ng/spot.
The primary medicinal compounds of this plant are shown in the list below.
- gossypol
- mansonone E
- thespesenone
- thespesone
- populene A-H
What health conditions is this plant used for?
This plant is used for cutaneous affections, diseases of skin, various skin ailments, skin related diseases, and wound healing. The medicinal properties of Thespesia populnea are frequently applied to soothe irritation and address different dermatological issues. Practitioners often utilize its extracts to manage various skin related diseases through topical applications. It is also highly valued for its ability to promote efficient wound healing in injured tissues. This botanical resource serves as a versatile remedy for a wide range of common skin ailments.
According to a study published by "Pharmacognosy research", Thespesia populnea L. is a medicinal plant used for cutaneous affections, psoriasis, ringworm, and eczema. The bark and fruits are indicated for diseases of the skin, urethritis, and gonorrhea. Additionally, the juice of the fruits is employed in treating certain hepatic diseases. The plant is a common component of herbal and Ayurvedic formulations like Kamilari and Liv-52. Quantitative analysis of its quercetin and kaempferol components was performed using a mobile phase of toluene: ethyl acetate: formic acid in a 6:4:0.3 v/v/v ratio. The study established concentration ranges for calibration curves of 100-600 ng/spot and 500-3000 ng/spot with correlation coefficients of 0.9955 and 0.9967.
The main health conditions this plant is used for are shown in the list below.
- cutaneous affections
- diseases of skin
- eczema
- psoriasis
- skin ailments
What are the herbal preparations of this plant?
This plant is utilized to create medicinal herbal preparations including 80% ethanolic extract, methanolic extracts, a poultice, seed oil, and a water suspension of flower. Various solvents are employed during the extraction process to isolate specific bioactive compounds from the plant tissues. The methanolic and ethanolic extracts are often studied for their concentrated pharmacological properties. Additionally, the seed oil and flower-based water suspension offer different methods of delivery for its therapeutic constituents. A topical poultice can also be prepared directly from the plant material to treat localized ailments.
According to a study published by "Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie", methanolic extracts of Thespesia populnea recorded the maximum antimicrobial activity against bacterial and fungal pathogens. These methanolic extracts also evidenced the highest antioxidant properties. The extract of Thespesia populnea showed the maximum cytotoxicity against Artemia salina with an LC50 value of 478.11μg/ml. The hemolytic property of the Thespesia populnea extract was 21%, although the hemolytic index did not show any hemolysis of human erythrocytes. TLC separation of the Thespesia populnea extract exhibited the presence of Flavonoids with an Rf of 0.74 and Terpenoids with an Rf of 0.64.
The main herbal preparations of this plant are shown in the list below.
- 80% ethanolic extract
- methanolic extracts
- poultice
- seed oil
- water suspension of flower
What side effects this plant can have?
This plant can cause severe health complications such as colic pain, hemolysis, and the development of an ulcer. Consuming parts of the plant may lead to intense abdominal cramping known as colic pain. In some cases, the chemical components can trigger hemolysis, which is the destruction of red blood cells. Furthermore, certain extracts are associated with the formation of an ulcer in the digestive tract. These serious side effects necessitate extreme caution regarding any medicinal use of the species.
According to a study published by "Pharmaceuctical biology", the aqueous extract of Thespesia populnea heartwood was administered at doses of 100 and 200 mg/kg to mice to treat ulcerative colitis. The aqueous extract restored Hb concentration to 17.20 ± 0.5, whereas DNBS treatment had reduced it to 13.80 ± 0.5. In response to DNBS, MDA levels increased to 10.82 nm/mg in tissue and 10.25 nm/ml in blood, but the extract reduced these to 2.69 nm/mg and 3.59 nm/ml. Additionally, the extract significantly lowered MP0 levels from 412 U/mg and 404 U/ml in tissue and blood down to 205 U/mg and 219 U/ml. The aqueous extract also significantly reduced protease activity that was markedly increased in the treated animals.
The main side effects this plant can have are shown in the list below.
- colic pain
- hemolysis
- ulcer
What herbs are paired with Thespesia populnea?
This plant Thespesia populnea pairs most effectively with aromatic herbs such as basil, lemongrass, and mint to enhance its subtle, woody scent profile.
When used in culinary or medicinal infusions, the addition of lemongrass provides a bright citrus contrast to the plant's natural sweetness. Basil can be incorporated to add a peppery depth that complements the tree's floral undertones. Mint serves as a refreshing agent that balances the heavier, earthy notes often associated with its bark and leaves.
These specific combinations help to highlight the unique sensory characteristics of the species during various applications.