Picrasma quassioides

What's the taxonomical classification of Picrasma quassioides?

Picrasma quassioides 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. The plant is further organized into the order Sapindales and falls within the family Simaroubaceae. Finally, its specific taxonomic identity is defined by the genus Picrasma and the species quassioidea.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Sapindales
Family Simaroubaceae
Genus Picrasma
Species quassioides
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Picrasma quassioides has large, pinnately compound leaves that typically consist of seven to eleven leaflets arranged along a central rachis. The leaflets are generally elliptical or lanceolate in shape with entire margins and acute tips. This woody shrub or small tree exhibits a spreading growth habit with branches that can become quite sturdy. The flowers are small, yellowish-green, and arranged in dense terminal panicles. During the fruiting stage, the plant produces small, fleshy drupes that transition in color as they mature.

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, Malaysia, Indonesia, Vietnam, and parts of Southern China. It typically thrives in lowland rainforest habitats and seasonally dry forests where humidity is relatively high. The species is often found growing in the understory of dense vegetation or along riverbanks within these warm climates. Its distribution is closely tied to specific elevation ranges that support its growth requirements. Local ecosystems in these maritime and continental Southeast Asian zones provide the ideal environmental conditions for its survival.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, known as Quassia, thrives in tropical environments with well-drained soil, partial shade, and consistent moisture.

It is native to the rainforests of the Caribbean and South America, where it naturally grows in humid conditions. Growers must ensure the soil remains moist but never waterlogged to prevent root rot. Regular fertilization with organic matter can help support its growth and bitter compound production.

Monitoring for pests is essential, as the plant prefers a stable climate without extreme temperature fluctuations.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant utilizes its fruits, leaves, stem, and twigs for various medicinal applications in traditional treatments. The bitter fruits are frequently processed to create decoctions used for treating digestive ailments and fever. Extracts from the leaves are often applied topically or ingested to manage inflammatory conditions. Both the stem and the twigs contain potent alkaloids that contribute to the plant's overall therapeutic properties. These different components are carefully harvested to ensure the effective delivery of bioactive compounds.

According to a study published by "Pest management science", a systematic phytochemical study was conducted on the relatively understudied fruits of Picrasma quassioides. Ten new (1-10) and 15 known quassinoids (11-25) were isolated from the fruits of Picrasma quassioides. Among these, compounds 2, 3, 5, 7, 10-16 and 18-23 demonstrated potent insecticidal activity. All new compounds possess a hydroxyl group at C-14 except for compound 5, which contains a double bond at C-14 and C-15. These quassinoids isolated from the fruits demonstrate significant efficacy in managing the larvae of Diaforina citri.

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

  • fruits
  • leaves
  • stem
  • twigs
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, Picrasma quassioides, has been utilized for centuries in various traditional medical systems to treat digestive ailments and inflammatory conditions. In Traditional Chinese Medicine, the root is frequently employed to clear heat and resolve dampness within the body. Practitioners often prescribe it to address issues such as jaundice, fever, and certain types of abdominal pain. Beyond its role in Asian medicine, historical records indicate its use in other regional practices for its potent bitter properties. These applications rely on the plant's high concentration of quassinoids to stimulate appetite and aid digestion.

According to a study published by "Journal of chromatography. B, Analytical technologies in the biomedical and life sciences", Picrasma quassioides (D. Don) Benn. is used in traditional Chinese medicine for the treatment of inflammation. The characteristic components of the medicinal extract are canthinone alkaloids, specifically 5-hydroxy-4-methoxycanthin-6-one and 4,5-dimethoxycanthin-6-one. In a pharmacokinetic study, rat plasma was analyzed after the oral administration of 200 mg/kg of P. quassioides extract. The method showed excellent linearity for 5-hydroxy-4-methoxycanthin-6-one over the range of 1.25-900 ng/mL. Additionally, 4,5-dimethoxycanthin-6-one demonstrated linearity over the range of 0.5-800 ng/mL.

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

  • Traditional Chinese Medicine
Evidence Level: ★★★☆☆

What are the pharmacological activities of Picrasma quassioides?

This plant has potent anti-cancer, anti-hepatoma, and antitumor pharmacological activities driven by its significant cytotoxic properties. Research indicates that its bioactive compounds exhibit strong inhibitory activity against cancer cells by disrupting their growth cycles. These effects are particularly notable in studies targeting hepatoma cell lines, where the plant extracts demonstrate high efficacy. The specific mechanisms involve the induction of apoptosis and the suppression of cellular proliferation in various malignant tissues. Consequently, Picrasma quassioides serves as a significant subject of interest in the development of new chemotherapeutic agents.

According to a study published by "Fitoterapia", Picrasma quassioides stems and leaves are recorded in the Chinese Pharmacopeia as Kumu with antimicrobial, anti-cancer, and anti-parasitic effects. Bioassay results demonstrated the efficacy of both leaves and stems against a tumor cell line (A549), 5 fungi, 6 Gram-positive bacteria, and 9 Gram-negative bacteria. While both parts showed efficacy against tumor cells and microbes, only the leaves exhibited anthelmintic activity against N2 wild-type Caenorhabditis elegans. A total of 181 compounds were identified from the plant, including 43 β-carbolines, 20 bis β-carbolines, 8 canthinone alkaloids, 56 quassinoids, 12 triterpenoids, 13 terpenoid derivatives, 11 flavonoids, 7 coumarins, and 11 phenolic derivatives. The antibacterial, antifungal, and anthelmintiic activities of the leaves were reported for the first time in this study.

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

  • anti-cancer
  • anti-hepatoma
  • anti-tumor
  • cytotoxic
  • inhibitory activity against cancer cells
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains a diverse array of bioactive medicinal compounds including quassinoids, PQAs, kumulactonones, canthin-6-one alkaloids, and beta-carboline alkaloids. The quassinoids and PQAs represent the primary bitter principles responsible for the plant's potent pharmacological properties. Within these chemical profiles, kumulactonones serve as significant components often studied for their specific biological activities. Additionally, the presence of canthin-6-one alkaloids and beta-carboline alkaloids contributes to its complex chemical makeup. These various secondary metabolites collectively define the therapeutic potential of Picrasma quassioides in traditional and modern medicine.

According to a study published by "Bioorganic chemistry", a systematic phytochemistry study of the EtOAc extract of Picrasma quassioides stems led to the isolation and identification of six beta-carboline alkaloids (1-6), seven canthin-6-one alkaloids (7-13), and five quassinoids (14-18). Among these, four beta-carbolines (1-3, and 6) and six canthin-6-ones (7-11, and 13) exhibited potential neuroprotective activities in vitro. Molecular docking experiments showed that compounds 2 and 3 have high affinity for both of dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYPKIA) and butyrylcholinesterase (BuChE). These active components were studied in relation to l-glutamate-stimulated PC12 and Aβ25-35-stimulated SH-SY5Y cell models.

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

  • 1. Quassinoids
  • 2. PQAs
  • 3. C-14 oxygenated quassinoids
  • 4. Kumulactonones
  • 5. Picraqualides
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for treating fever, dysentery, anti-cancer, anti-parasitic, and anti-microbial health conditions. Its bioactive compounds are frequently utilized in traditional medicine to combat various infectious pathogens. The medicinal properties of the plant help inhibit the growth of harmful microbes and parasites within the body. Additionally, researchers investigate its potential efficacy in suppressing cancer cell progression. These diverse therapeutic applications make it a significant subject in pharmacological studies.

According to a study published by "Fitoterapia", Picrasma quassioides stems and leaves are recorded in the Chinese Pharmacopeia as Kumu for their antimicrobial, anti-cancer, and anti-parasitic effects. Bioactivity evaluations involved testing against 5 fungi, 6 Gram-positive bacteria, 9 Gram-negative bacteria, a tumor cell line (A549), a non-tumor cell line (WI-26 VA4), and N2 wild-type Caenorhabditis elegans. Results demonstrated the efficacy of both leaves and stems against tumor cells, several bacteria, and fungi. Furthermore, only the leaves exhibited anthelmintiic activity against C. elegans. These findings provide the first reports of the antibacterial, antifungal, and anthelmintiic activities of the PQ leaves.

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

  • anti-cancer
  • anti-parasitic
  • anti-microbial
  • cancer
  • tumor
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Picrasma quassioides, a bitter medicinal herb used in traditional African medicine to create various topical and oral preparations for treating ailments like malaria and digestive issues. Researchers frequently utilize the EtOAc extract of the plant's roots to isolate bioactive quassinoids that demonstrate significant pharmacological potential. These chemical compounds are responsible for the plant's intense bitterness and its ability to exhibit antimicrobial and anti-inflammatory activities. Beyond simple decoctions, specialized extracts are being studied for their ability to inhibit specific pathogens in laboratory settings. Such medicinal preparations serve as a vital bridge between traditional ethnobotanical knowledge and modern drug discovery.

According to a study published by "Bioorganic chemistry", Picrasma quassioides stems have been used in traditional medicine to treat inflammation, fever, microbial infection, and dysentery. The EtOAc extract of these stems showed neuroprotective activities in l-glutamate-stimulated PC12 and Aβ25-35-stimulated SH-SY5Y cell models. A systematic study isolated and identified six β-carboline alkaloids (1-6), seven canthin-6-one alkaloids (7-13), and five quassinoids (14-18). Among these, four β-carbolines (1-3, and 6) and six canthin-6-ones (7-11, and 13) exhibited potential neuroprotective activities in vitro. Molecular docking experiments also demonstrated that compounds 2 and 3 have a high affinity for both DYPKIA and BuChE.

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

  • EtOAc extract
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can produce no documented health side effects because the provided list contains only therapeutic properties rather than adverse reactions. These specific actions describe the beneficial medicinal effects of the plant instead of negative impacts on the body. Because the data focuses on how the plant helps treat conditions, there is no information available regarding potential toxicity or harm. Consequently, any claims about side effects cannot be substantiated using the current information provided.

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

  • The provided list contains therapeutic properties (actions) rather than side effects. Based on the items provided, none are health side effects.
Evidence Level: ★★★☆☆

What herbs are paired with Picrasma quassioides?

This plant, Picrasma quassioides, is frequently paired with ginger, cinnamon, and licorice to enhance its bitter tonic properties and balance its intense flavor profile.

These combinations are often utilized in traditional herbal decoctions to improve digestion and stimulate appetite. Adding warming spices like ginger helps to mitigate the harshness of the quassia alkaloids while promoting systemic circulation. Licorice is specifically included to provide a sweet contrast that makes the potent bitter brew more palatable for patients.

Such strategic pairings serve to harmonize the medicinal efficacy of the root with more soothing botanical agents.

Evidence Level: ★☆☆☆☆