Epimedium koreanum
What's the taxonomical classification of Epimedium koreanum?
Epimedium koreanum belongs to the kingdom Plantae and is classified within the phylum Streptophyta. As a member of the class Equisetopsida and the subclass Magnoliidae, it follows the evolutionary lineage of the order Ranunculales. This plant is further categorized under the family Berberidaceae, which places it within the genus Epimedium, and is specifically identified by its species name, koreanum.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Ranunculales |
| Family | Berberidaceae |
| Genus | Epimedium |
| Species | koreanum |
What are the morphological characteristics of this plant?
Epimedium koreanum has deciduous, heart-shaped leaves that are arranged in basal rosettes and feature finely serrated margins and prominent venation. The foliage typically emerges in early spring, displaying a lush green color before potentially turning reddish in autumn. During the flowering season, it produces small, four-petaled blossoms that are pale yellow or creamy white. These flowers are held on slender, upright stems that rise above the dense leaf canopy. The plant's overall structure is compact and spreading, making it well-suited for woodland environments.
What is the geographical distribution of this plant?
This plant is endemic to the Korean Peninsula, specifically found in the mountainous regions of South Korea. Its habitat is typically restricted to shaded, moist environments such as forest floors and rocky slopes. Within these localized ecosystems, it thrives in temperate climates that provide consistent seasonal shifts. The species does not occur naturally in any other part of the world outside of this specific East Asian range. Consequently, its survival is closely tied to the preservation of these particular Korean woodland habitats.
How is this plant cultivated?
This plant requires a well-draining, humus-rich acidic soil substrate and constant moisture maintained through regular watering and high atmospheric humidity.
It thrives best in partial shade or dappled sunlight to prevent the delicate foliage from scorching under intense heat. Because it originates from temperate forest floors, providing consistent organic matter and a cool root zone is essential for its survival. Growers should avoid letting the soil dry out completely, as drought stress can quickly lead to leaf wilt.
Proper air circulation around the container or garden bed will further help prevent fungal issues in these damp environments.
What parts of this plant are used medicinally?
This plant Epimedium koreanum is utilized medicinally through its aerial parts, which encompass the branches, leaves, and leaflets. These above-ground structures contain bioactive flavonoids that serve as the primary therapeutic components. The medicinal efficacy is derived from processing the entire green portion of the herb rather than specific isolated segments. Both the broader leaves and their individual leaflets are harvested to ensure a high concentration of active compounds. Consequently, the branches and foliage are integrated into traditional remedies to achieve desired health effects.
According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", six compounds were isolated from the ethyl acetate extract of the aerial part of Epimedium koreanum. These six compounds were identified as icariin (I), luteolin (II), baohuoside II (III), hyperoside (IV), epimedokoreanin B (V) and baohuoside I (VI). At concentrations of 3.125-200 micromol x L(-1), compounds II, IV and V showed a scavenging ability of the DPPH radical that was stronger than that of Vit C. Regarding antitumoer activity, compounds I, II, V and VI could inhibit the proliferation of MCF-7 and HepG2 in a dose-dependant manner. However, compounds III and IV had no effect on the proliferation of these cells.
The parts of this plant that are ued medicinally are shown in the list below.
- aerial part
- branch
- leaf
- leaflet
What traditional systems uses this plant?
This plant Epimedium koreanum has been utilized for centuries within Traditional Chinese Medicine and various regional herbal practices to treat ailments related to kidney deficiency and reproductive dysfunction. Practitioners historically prescribed its roots to enhance sexual vitality and address issues of low libido in both men and women. The herb was often integrated into complex formulas designed to tonify the essence and regulate the flow of vital energy throughout the body. In many East Asian folk traditions, it served as a primary botanical agent for managing urinary irregularities and strengthening the lower back. Through these long-standing applications, the plant established a significant reputation as a potent restorative tonic in historical pharmacopeias.
According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", the species E. koreanum is one of 5 species recorded in the Chinese Pharmacopoeia. It is also part of a group of 8 official species including those recorded in the Guizhou Quality Criteria for Traditional Chinese Medical Material and Nationality Medical Material. Among the 24 species of the genus Epimedium in China, the HPLC fingerprints of E. koreanum are rather different from others. These specific fingerprinting features can be used for the identification of the species.
The hystorical systems that uses this plant are shown in the list below.
- Traditional Chinese Medicine
What are the pharmacological activities of Epimedium koreanum?
This plant has anti-multiple myeloma, anti-osteoporosis, antioxidative, antiproliferative, and antitumoral activities. These diverse pharmacological properties suggest that the species contains bioactive compounds capable of modulating complex biological processes. Specifically, its antiproliferative and antitumoral potential indicates a significant capacity to inhibit the uncontrolled growth of various cancer cells. The plant also demonstrates effectiveness in combating multiple myeloma and providing protective anti-osteoporosis effects. Furthermore, its strong antioxidative activity helps mitigate cellular damage caused by oxidative stress.
According to a study published by "Acta biochimica et biophysica Sinica", the medicinal plant Epimedium koreanum provides the isoprenylated flavonoid compound Epimedokoreanin B (EKB) which demonstrates promising anti-tumour activity. EKB exhibits potent cytotoxicity against the MM cell lines U266 and RPMI-8226, showing IC50 values of 5.28 μM and 6.81 μM, respectively. The compound induces apoptosis in a concentration-dependent manner and specifically stabilizes the G-quadruplex (G4) structures of oncogenes such as c-Myc, c-KIT, Bcl-2, and k-RAS. Furthermore, EKB significantly suppresses the mRNA and protein expression levels of these specific genes in myeloma cells. Through molecular docking and MD simulations, the research confirms that EKB has a strong binding affinity for G4s via π-π stacking and hydrogen bonding.
The primary pharmacological activities of this plant are shown in the list below.
- anti-multiple myeloma
- anti-osteoporosis
- antioxidative
- antiproliferative activity
- antitumooral potential
What medicinal compounds this plant contains?
This plant contains the medicinal compounds Icariin, Epimedokoreanin B, Baohuoside I, Baohuoside II, and Epimediin A. These specific flavonoids and glycosides are responsible for the primary pharmacological activities associated with the species. Researchers often study these constituents to understand their potential effects on hormonal regulation and bone density. Each compound contributes to the unique chemical profile that distinguishes this botanical source. The synergy between these bioactive molecules defines the therapeutic value of the plant extracts.
According to a study published by "Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association", the Epi ext exhibited ERα- and ERβ-mediated estrogenic activity with an EC(50) of 5.0 and 17.8 μM in HEK293T cells, respectively. Prenylflavonoid glycosides within the plant, such as icariiin (ICA), epimediin A, B, and C, did not show any in vitro estrogenic or antiestrogenic activities. Icariin (ICT) and quercetin exhibited in vitro ER mediated estrogenic activity with a more potent interaction with ERβ. In an uterotrophic assay comparing in vivo estrogenic activities, the potency of in vitro estrogenic activity followed the order of ICT > Epi ext > ICA. Despite this, ICA demonstrated the strongest estrogenic activity, followed by ICT, in ovariectomized rats.
The primary medicinal compounds of this plant are shown in the list below.
- Epimedokoreanin B
- Icariin
- baohuoside I
- baohuoside II
- epimediin A
What health conditions is this plant used for?
This plant is used for treating kidney-yang deficiency syndrome, kidney deficiency, and general yang deficiency. It functions as a powerful tonic medicine that restores vital energy to the body. Practitioners often prescribe it to address the physical decline associated with aging. By strengthening the lower jiao, it helps replenish the essence required for long-term vitality. This botanical remedy serves to stabilize internal heat and support constitutional strength.
According to a study published by "Guang pu xue yu guang pu fen xi = Guang pu", the dried aerial parts of Epimedium koreanum Nakai are part of Herba Epimedii. This plant has been widely used in the field of nourishing the kidney and reinforcing 'Yang' for centuries. The study utilized methods of FTIR and the second derivative IR spectra to identify this specific species. These methods allow E. koreanum Nakai to be identified from E. brevicornum Maxim. based on the features of the IR spectra.
The main health conditions this plant is used for are shown in the list below.
- Yang deficiency
- kidney deficiency
- kidney-yang deficiency syndrome
- tonic medicine
- aging
What are the herbal preparations of this plant?
This plant is Epimedium koreanum, which is utilized to produce medicinal herbal preparations such as Epimedii Folium, methanolic extracts, Ying Yang Huo, aqueous extract, and decoction pieces. The dried leaves, known as Epimedii Folium, serve as the primary raw material for various therapeutic applications. Practitioners often utilize decoction pieces to facilitate the traditional boiling process required for certain treatments. Additionally, methanolic extracts and aqueous extracts are prepared to isolate specific bioactive compounds for standardized use. These different forms of Ying Yang Huo allow for diverse methods of administration in herbal medicine.
According to a study published by "Journal of mass spectrometry : JMS", Epimedium koreanum Nakai (EKN) is one of the four species of the genus Epimedium contained in the Pharmacopoeia of the People's Republic of China (2020 Version) used as a medicinal source for Epimedii Folium (EF). The study utilized ultra-high performance liquid chromatography coupled with time-of-flight tandem mass spectrometry (UPLC-ZenoTOF-MS/MS) to identify and characterize chemical constituents in these species. From the different species of EF, a total of 116 constituents were identified. Based on variable importance in projection (VIP) value and p-value, 23 differential characteristic constituents were screened, including nine constituents that were common differential constituents. This metabolomic analysis provides basic information for the identification of different varieties of EF.
The main herbal preparations of this plant are shown in the list below.
- Epimedii Folium
- Methanolic extracts
- Ying Yang Huo
- aqueous extract
- decoction pieces
What side effects this plant can have?
This plant can cause serious health complications including arrhythmia, cardiovascular diseases, impotence, osteoporosis, and increased oxidation levels. Consuming the species may lead to irregular heart rhythms that disrupt normal circulatory patterns. These cardiac issues can escalate into more severe cardiovascular diseases if left unmanaged. Furthermore, the plant is linked to the development of impotence and the weakening of bone density through osteoporosis. Finally, it can trigger physiological oxidation, which contributes to cellular damage throughout the body.
According to a study published by "Evidence-based complementary and alternative medicine : eCAM", Epimedium koreanum Nakai is a medicinal plant known for its health beneficial effects on impotence, arrhythmia, oxidation, aging, osteoporosis, and cardiovascular diseases. The ethyl acetate fraction of E. koreanum inhibited platelet aggregation in agonist-stimulated human and rat washed platelets. This inhibition was achieved by reducing calcium mobilization, ATP secretion, and TXB2 formation. Additionally, the plant attenuated integrin αIIbβ3-mediated inside-out and outside-in signaling, which decreased fibrinogen binding, fibronectin adhesion, and clot retraction. The fraction predominantly contained icariin as revealed by HPLC results.
The main side effects this plant can have are shown in the list below.
- arrhythmia
- cardiovascular diseases
- impotence
- osteoporosis
- oxidation
What herbs are paired with Epimedium koreanum?
This plant Epimedium koreanum is most frequently paired with herbs such as Rehmannia glutinosa, Paeonia lactiflora, and Astragalus membranaceus in traditional medicinal formulations.
These combinations are specifically designed to balance the plant's cooling properties with warming or tonifying elements to support kidney and liver functions. Practitioners often include Panax ginseng in these mixtures to enhance the overall restorative effects on vital energy. The synergy between these specific botanical components helps to stabilize the body's internal equilibrium during treatment.
By selecting these complementary species, herbalists can tailor the formula to address specific deficiencies in the patient's constitution.