Bougainvillea glabra
What's the taxonomical classification of Bougainvillea glabra?
Bougainvillea glabra 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. Moving further down the taxonomic hierarchy, it falls under the order Caryophyllales and is a member of the family Nyctaginaceae. Finally, the plant is identified by the genus Bougainvillea and is specifically designated as the species glabra.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Caryophyllales |
| Family | Nyctaginaceae |
| Genus | Bougainvillea |
| Species | glabra |
What are the morphological characteristics of this plant?
Bougainvillea glabra has woody, perennial stems covered in sharp, curved thorns and small, ovate, bright green leaves that lack hair. The plant is a climbing woody vine that uses its prickles to scramble over structures or through surrounding vegetation. Its most striking feature consists of colorful, papery bracts that surround tiny, inconspicuous white flowers. These bracts can appear in shades of pink, purple, or orange and serve to attract pollinators to the plant. The foliage remains relatively small compared to the expansive reach of its sprawling branches.
What is the geographical distribution of this plant?
This plant is native to the tropical and subtropical regions of South America, specifically spanning across Brazil, Peru, and Argentina. It thrives in warm climates where frost is rare and sunlight is abundant. While its origins are centered in the Americas, it has been naturalized in many other tropical zones worldwide. You can frequently find it growing in gardens and landscapes throughout Florida, California, and the Mediterranean. Its ability to tolerate various soil types allows it to spread across diverse coastal and inland environments globally.
How is this plant cultivated?
This plant requires full sunlight for at least six hours daily and well-draining, sandy or loamy soil with a slightly acidic to neutral pH to thrive.
During the establishment phase, frequent watering is necessary to keep the roots moist, but the soil should be allowed to dry out completely between waterings once the plant matures. Nitrogen-rich fertilizers can promote lush green foliage, though reducing fertilizer application often stimulates more vibrant bract production. Pruning should be performed regularly to control its vigorous climbing habit and to encourage new flowering wood.
In colder climates, the plant must be protected from frost or grown in containers that can be moved indoors during winter months.
What parts of this plant are used medicinally?
This plant Bougainvillea glabra utilizes its bracts, flowers, leaves, and aerial parts for various medicinal purposes. The colorful bracts and small flowers are often prepared as decoctions to treat respiratory issues and inflammation. Medicinal extracts derived from the leaves can assist in managing digestive ailments and reducing fever. Practitioners frequently employ the entire aerial parts of the plant to create herbal remedies for skin conditions and wound healing. These diverse components provide a wide range of therapeutic properties used in traditional medicine.
According to a study published by "Scientific data", Bougainvillea glabra is an ornamental tree or shrub with nearly 200 years of application in gardening and landscapes globally. There is a growing research interest in the medicinal applications of B. glabra extracts. Researchers sequenced the bracts transcriptome of 22 B. glabra accessions and generated more than 80 Gb clean data. This process resulted in 174,758 unigenes with an E90N50 of 2,473 bp and a total of 100,115 CDSs. On average, each variety contains 69,990 unigenes containing SNPs, with 35,682 annotated per variety.
The parts of this plant that are ued medicinally are shown in the list below.
- bracts
- flower
- leaf
- aerial parts
What traditional systems uses this plant?
This plant, Bougainvillea glabra, has been utilized in various traditional medicine systems across tropical regions for its purported therapeutic properties.
In some indigenous practices, infusions made from the stems or leaves are used to treat respiratory ailments and inflammation. Local healers have also historically applied crushed plant matter topically to address skin irritations or minor wounds. Some cultures incorporate parts of the plant into dietary traditions, though its use is often limited to specific preparations.
These historical uses highlight the plant's significance in folk medicine within its native habitats.
What are the pharmacological activities of Bougainvillea glabra?
This plant has anti-inflammatory, antimicrobial, antioxidant, immunomodulatory, and acetylcholinesterase inhibitory activities. Its diverse chemical constituents allow it to combat oxidative stress and neutralize harmful free radicals within the body. The plant also demonstrates significant potential in inhibiting the growth of various pathogenic microorganisms. Through its immunomodulatory effects, it helps regulate the body's natural immune responses to maintain balance. Additionally, its ability to inhibit acetylcholinesterase makes it a subject of interest for neuroprotective research.
According to a study published by "Immunological investigations", Bougainvillea glabra was examined for its immunomodulatory and antioxidant activities. The extract showed an enhancement of the phagocytic function of RAW 264.7 macrophage cells. In studies where macrophages were challenged by incubation with LPS, the generation of NO from activated macrophages was substantially suppressed by Bougainvillea glabra. Additionally, the plant exhibited some antioxidant activities. These results suggest that the extract may have considerable anti-inflammatory and antioxidant effects.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- antimicrobial
- antioxidant
- immunomodulatory
- α-amylase inhibitory activity
What medicinal compounds this plant contains?
This plant contains several bioactive medicinal compounds including rhamnocitrin-O-rutinoside, rutin, sagerinic acid, tri-O-caffeoyl-shikimic acid, and gallic acid. These specific phytochemicals contribute to the diverse pharmacological profile of Bougainvillea glabra. The presence of flavonoids like rutin often provides significant antioxidant and anti-inflammatory benefits. Additionally, phenolic acids such as gallic acid and sagerinic acid play crucial roles in the plant's medicinal properties. Research into these constituents helps explain how the plant may interact with various biological pathways.
According to a study published by "Scientific reports", Bougainvillea glabra leaf extract contains total phenolic and flavonoid contents of 27.68 mg GAE/g and 31.76 mg RE/g, respectively. Twenty-one metabolites were tentatively identified and quantified, with flavonoids and phenolic acids being the most abundant classes. The most abundant components identified were rhamnocitrin-O-rutinoside, sagerinic acid, tri-O-caffeoyl-shikimic acid, and chlorogenic acid. This extract showed an inhibitory effect against AChE at 2.40 mg GALAE/g and against BChE at 1.95 mg GALAE/g. Additionally, the tyrosinase-inhibiting effect was 48.23 mg CAE/g, while amylase and glucosidase inhibitory effects were 0.30 mmol ACAE/g and 0.03 mmol ACAE/g, respectively.
The primary medicinal compounds of this plant are shown in the list below.
- rhamnocitrin-O-rutinoside
- rutin
- sagerinic acid
- tri-O-caffeoyl-shikimic acid
- gallic acid
What health conditions is this plant used for?
This plant is used for managing diabetes, inflammatory diseases, inflammatory disorders, skin problems, and providing antioxidant activities. The bioactive compounds found within its tissues help stabilize blood glucose levels in patients with diabetes. Its natural properties are also utilized to reduce the symptoms associated with various inflammatory disorders and diseases. Furthermore, the plant offers significant antioxidant activities that protect cells from oxidative stress. These medicinal qualities make it a valuable resource for treating various skin problems as well.
According to a study published by "Immunological investigations", Bougainvillea glabra was examined for its immunomodulatory and antioxidant activities. The extract of Bougainvillea glabra was found to substantially suppress the generation of NO from activated macrophages. This plant also exhibited some antioxidant activities during the evaluation of the 11 extracts. The results suggest that this extract may have considerable anti-inflammatory and antioxidant effects. Such properties may make it a potential therapeutic choice in the treatment of inflammatory diseases.
The main health conditions this plant is used for are shown in the list below.
- antioxidant activities
- diabete
- inflammatory diseases
- inflammatory disorders
- inflammatory responses
What are the herbal preparations of this plant?
This plant is utilized in pharmacological research to develop medicinal herbal preparations including acetone extracts and dichloroform (DCM) extracts. Researchers employ these specific solvents to isolate bioactive compounds such as flavonoids and alkaloids from the leaves and bracts. These acetone extracts are often studied for their potential antioxidant and anti-inflammatory properties in various biological models. Similarly, dichloroform (DCM) extract preparations allow for the concentration of lipophilic constituents that may exhibit antimicrobial effects. Ongoing studies aim to standardize these herbal preparations for safer therapeutic applications in modern medicine.
According to a study published by "Microbial pathogenesis", the leaf extracts of Bougainvillea glabra show high insecticidal, antimicrobial, and antioxidant potential. Acetone extracts of the plant exhibited toxic effects against Culex pipiens larvae of 99.0-100 % at 72 h post-treatment. The LC50 value for Bougainvillea glabra was determined to be 142.8 ppm. Analyses using GC-MS and HPLC showed a higher number of terpenes, flavonoids, and phenolic compounds within the plant. Additionally, the ADME analysis of elements like caryophyllene oxide, caryophyllene, and copaene showed they were similar to drugs and able to pass through the blood-brain barrier.
The main herbal preparations of this plant are shown in the list below.
- acetone extracts
- dichloromethane (DCM) extract
What side effects this plant can have?
This plant can cause inhibited growth in various organisms due to the presence of specific allelopathic compounds. These chemical substances released into the soil can suppress the development of nearby competing vegetation. When ingested or applied to certain biological systems, the plant's components may interfere with normal cellular division and metabolic processes. Such physiological disruptions often lead to stunted maturation and reduced biomass in sensitive species. Consequently, the presence of Bougainvillea glabra can alter the surrounding ecosystem by limiting the expansion of other plants.
According to a study published by "Plant physiology and biochemistry : PPB", chilling stress significantly inhibits the growth of Bougainvillea glabra Brasiliensis by reducing leaf length, leaf width, leaf area, fresh weight, and dry weight. This cultivar exhibits higher osmolyte accumulation and antioxidant enzyme activities compared to the sensitive species, which results in less damage to chlorophyll and photosystem II efficiency. Weighted gene co-expression network analysis identified 10 core hub genes associated with chilling tolerance in Bougainvillea. These critical genes include Bou_113215 for xylan synthesis, Bou_98583 for proline transport, and Bou_44133 for NAC8 transcriptional control. Through these mechanisms, Brasiliensis successfully responds to chilling stress by boosting carbohydrate metabolism and modulating hormone levels.
The main side effects this plant can have are shown in the list below.
- inhibited growth
What herbs are paired with Bougainvillea glabra?
This plant pairs best with drought-tolerant Mediterranean herbs such as rosemary, lavender, thyme, and sage to create a cohesive landscape.
These companions share similar sunlight and water requirements, ensuring that the thirsty bougainvillea does not overwhelm more delicate species. The silver-green foliage of lavender and sage provides a striking color contrast against the vibrant bracts of the bougainvillea. Utilizing these woody herbs helps to create a structured aesthetic while maintaining a low-maintenance garden environment.
This grouping also encourages biodiversity by attracting various pollinators to the shared planting space.