Hibiscus syriacus
What's the taxonomical classification of Hibiscus syriacus?
Hibiscus syriacus 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 down the taxonomic hierarchy, it falls under the order Malvales and the family Malvaceae. Finally, the plant is identified by the genus Hibiscus and is specifically known by its species name, syriacus.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Malvales |
| Family | Malvaceae |
| Genus | Hibiscus |
| Species | syriacus |
What are the morphological characteristics of this plant?
Hibiscus syriacus has an upright, deciduous shrub habit characterized by multi-stemmed woody branches and oppositely arranged, three-lobed leaves that are typically 5 to 15 centimeters long. The foliage features serrated margins and a textured surface that provides a dense backdrop for its seasonal blooms. Each flower displays five large, delicate petals that can range in color from white to deep pink or purple. A prominent, central stamen column extends from the middle of the blossom, serving as a key structural feature of the corolla. These flowers emerge on new growth during the summer months to attract various pollinators.
What is the geographical distribution of this plant?
This plant is native to East Asia, specifically spanning across China, Korea, and Japan. While its origins are rooted in these eastern territories, it has been widely naturalized in many other temperate regions of the world. It is commonly cultivated in gardens throughout Europe and North America due to its hardiness and ornamental value. Because it thrives in various climates, it can be found in many suburban and urban landscapes globally. This widespread distribution makes it a familiar sight in many different botanical collections.
How is this plant cultivated?
This plant, commonly known as Rose of Sharon, thrives in well-drained soil with full sun exposure and requires USDA hardiness zones 5 through 9 for successful cultivation.
To ensure vigorous growth, gardeners should plant it in a location where it can receive at least six to eight hours of direct sunlight daily. Regular watering is necessary during the establishment period, though the mature shrub is relatively drought-tolerant once its root system is well-developed. Pruning should be performed in late winter or early spring to remove dead wood and encourage new flowering stems.
Applying a balanced fertilizer during the growing season can further enhance the production of its large, colorful blooms.
What parts of this plant are used medicinally?
This plant provides medicinal value through its flowers, leaves, petals, roots, and stems. The petals and flowers are often brewed into herbal teas to soothe the digestive system or reduce inflammation. Extracts from the leaves can be applied topically to help heal skin irritations. The roots are utilized in traditional remedies to address various internal ailments. Finally, the stem provides structural support for the other parts while containing compounds used in specialized preparations.
According to a study published by "International journal of molecular sciences", Hibiscus syriacus is a plant with medicinal, edible, and greening values. A total of 163 candidate MADS-box genes were identified and classified into type I (Mα, Mβ, and Mγ) and type II (MIKC and Mδ). The study analyzed nine HsMADS expressions of 2 different Hibiscus syriacus cultivars. These findings were used to investigate gene structure, phylogenetics, cis-acting elements, three-dimensional structure, gene expression, and protein interaction. This research provides a reference for the biological functions of the MADS-box, especially in flower organ development.
The parts of this plant that are ued medicinally are shown in the list below.
- flower
- leaf
- petal
- root
- stem
What traditional systems uses this plant?
This plant, Hibiscus syriacus, has been utilized in Traditional Chinese Medicine to treat various ailments by employing its flowers, roots, and leaves. Practitioners historically used the plant to address conditions such as skin inflammation, swelling, and certain types of fever. In some regional folk practices, decoctions made from the bark were prepared to aid in digestive health and reduce internal heat. The various parts of the shrub were also integrated into topical applications to soothe irritation on the body. These long-standing medicinal traditions highlight the plant's historical importance in herbal pharmacology.
According to a study published by "Journal of B.U.ON. : official journal of the Balkan Union of Oncology", the PE and CE of Hibiscus syriacus exhibited strong anticancer activity. This plant was one of 10 selected traditional Chinese medicinal plants evaluated for their anticancer activity on 4 cancer cell lines, specifically MCF-7, BALL-1, Huh-7, and HeLa. Researchers prepared 6 phytochemical extracts from each plant, totaling 60 extracts, including the PE and CE for Hibiscus syriacus. These extracts were screened for cytotoxicity using the MTT assay against 4 cancer cell lines and 1 normal cell line, MCF-10A. The results provided new evidence for the anticancer activities of these plants.
The hystorical systems that uses this plant are shown in the list below.
- Traditional Chinese Medicine
What are the pharmacological activities of Hibiscus syriacus?
This plant has anti-inflammatory, antioxidant, cytotoxic, hepatoprotective, and wound healing pharmacological activities. Its high concentration of polyphenols and flavonoids allows it to neutralize free radicals and reduce oxidative stress within the body. These bioactive compounds also help mitigate inflammation and promote faster tissue regeneration during the wound healing process. Furthermore, the plant exhibits cytotoxic properties that may inhibit the growth of certain cancer cells. Research also suggests that its extracts can protect liver cells from chemical-induced damage through its hepatoprotective effects.
According to a study published by "Journal of ethnopharmacology", Hibiscus syriacus L. flower (HSF) demonstrates gastric mucosal protective activity by alleviating ethanol-induced gastric mucosal damage. The chemical profile of HSF extracts contains a total of 158 compounds, which are primarily flavonoids, phenolic acid, benzoic acids, and cinnamic acids. These findings show that HSF mitigates inflammatory responses, ameliorates oxidative stress, and enhances cell vitality. The protective effects of HSF are mediated through the modulation of the Nrf2/HO-1, AKT, and JNK signaling pathways. This study validates the efficacy of HSF against ethanol-induced gastric ulcer in both in vivo rat models and in vitro ethanol-stimulated GES-1 cells.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- antioxidant
- cytotoxic
- hepatoprotective
- wound healing
What medicinal compounds this plant contains?
This plant contains the medicinal compounds cleomiscosins A, cleomiscosins C, cleomiscosins D, schaftoside, and syriacusins A-C. These specific phytochemicals are primarily found within the various tissues of the Hibiscus syriacus species. Researchers study these unique molecules to understand their potential bioactive properties and therapeutic applications. The presence of these distinct flavonoids and glycosides characterizes the chemical profile of the species. Detailed analysis of these compounds helps in identifying the plant's medicinal value for future pharmacological use.
According to a study published by "Journal of natural products", a previously undescribed coumarin and a new coumarino-lignan were isolated from the root bark of Hibiscus syriacus. These findings were presented alongside the known compounds scopoletin and cleomiscosins A, C, and D. The coumarin analogue and scopoletin were found to inhibit monoamine oxidase with moderate IC50 values. Additionally, the new coumarino-lignan and cleomiscosin C demonstrated lipid peroxidation inhibitory activity that was comparable to vitamin E.
The primary medicinal compounds of this plant are shown in the list below.
- cleomiscosins A
- cleomiscosins C
- cleomiscosins D
- schaftoside
- syriacusins A-C
What health conditions is this plant used for?
This plant is used for treating gastric ulcer, gastritis, inflammation, diabetes mellitus, and hyperglycemia. The medicinal properties of the flowers and leaves help soothe irritation within the digestive tract. Specific compounds in the plant assist in reducing systemic inflammation throughout the body. Furthermore, it is utilized to manage blood sugar levels in patients suffering from diabetes mellitus. These natural elements work together to help stabilize hyperglycemia by regulating glucose metabolism.
According to a study published by "Journal of ethnopharmacology", Hibiscus syriacus L. flower is used to treat gastric ailments and gastrointestinal benefits. In traditional practices across China, Japan, and Korea, it is used to clear heat, promote diuresis, cool the blood, and detoxify. The plant was documented for treating gastric ailments as far back as the Ming Dynasty in China. Research identified a total of 158 compounds, including flavonoids, phenolic acid, benzoic acids, and cinnamic acids, within the extracts. The study demonstrated that the flower attenuates ethanol-induced gastric ulcer by modulating the Nrf2/HO-1, AKT, and JNK pathways.
The main health conditions this plant is used for are shown in the list below.
- gastric ailments
- gastric mucosal damage
- gastric mucosal injury
- gastric ulcer
- gastritis
What are the herbal preparations of this plant?
This plant is Hibiscus syriaus L., which is used to create various medicinal herbal preparations including Hibiscus syriaus L. extract, ethanol extracts, mucilage, and tea. The ethanol extracts are often utilized to isolate specific bioactive compounds for more concentrated therapeutic applications. Mucilage derived from the plant parts can serve as a soothing agent for various bodily systems due to its viscous properties. Additionally, the flowers and leaves are frequently steeped to produce a tea used in traditional wellness practices. These diverse preparations allow for the extraction of different chemical profiles to suit specific medicinal needs.
According to a study published by "Life (Basel, Switzerland)", the therapeutic potential of Hibiscus syriacus L. extract (HSE) was investigated for managing diabetes mellitus and its complications. The administration of HSE substantially reduced hyperglycemia and increased insulin production while improving body weight and hydration. Molecular docking results with the 3GTV superoxide dismutase enzyme showed a binding energy of -6.3 kcal/mol. Treatment with HSE also led to a decrease in MDA levels and reduced levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT). These findings suggest that HSE provides antioxidant, hepatoprotective, and lipid-modifying benefits.
The main herbal preparations of this plant are shown in the list below.
- Hibiscus syriacus L. extract
- ethanol extracts
- mucilage
- tea
What side effects this plant can have?
This plant can cause cadmium toxicity if its tissues are consumed due to the accumulation of this heavy metal from the soil. While the flowers are often used for decorative purposes, they may harbor dangerous levels of cadmium that pose serious health risks to humans and animals. Ingesting contaminated plant matter can lead to kidney damage, bone fragility, and various other systemic complications. Researchers must carefully monitor the soil composition where these plants grow to ensure they do not become toxic. Regular testing is necessary to prevent accidental poisoning through the consumption of contaminated floral products.
According to a study published by "Journal of hazardous materials", Hibiscus syriacus L. is widely cultivated in Cd-contaminated areas of southern China. In experiments where soil cadmium was applied at 100 mg/kg, plants were harvested after 45 days. The application of nano-zinc oxide at concentrations of 50 and 100 mg/L was tested to alleviate toxicity. Specifically, nZnO reduced root Cd levels by 0.24 %-9.06 % compared to the Cd treatment alone. Leaf application of 50 mg/L nZnO showed the best results in mitigating damage and improving plant biomass.
The main side effects this plant can have are shown in the list below.
- cadmium toxicity
What herbs are paired with Hibiscus syriacus?
This plant pairs effectively with aromatic herbs such as lavender, sage, and rosemary to create a balanced and visually striking garden landscape.
The delicate, crepe-like blooms of the Rose of Sharon provide a soft texture that contrasts beautifully with the needle-like foliage of rosemary. Planting lavender near the base of the shrub adds a complementary fragrance and attracts pollinators that visit both species. Sage offers a muted green color that prevents the vibrant hibiscus flowers from becoming visually overwhelming.
These combinations help establish a cohesive aesthetic while promoting a healthy, diverse ecosystem in the garden.