Daphniphyllum calycinum
What's the taxonomical classification of Daphniphyllum calycinum?
Daphniphyllum calycinum 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 Saxifragales and is a member of the family Daphniphyllaceae. Finally, its taxonomic hierarchy is completed by its placement in the genus Daphniphyllum, identifying its specific species as calycinum.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Saxifragales |
| Family | Daphniphyllaceae |
| Genus | Daphniphyllum |
| Species | calycinum |
What are the morphological characteristics of this plant?
Daphniphyllum calycinum has opposite, elliptical to oblong leaves that measure approximately 5 to 15 centimeters in length with entire margins and smooth surfaces. The plant typically exhibits a woody, shrubby growth habit with slender branches. Its small, inconspicuous flowers are characterized by prominent, petal-like sepals that give the species its specific name. The reproductive structures often appear in small clusters along the stem or at the branch tips. These morphological features distinguish it from other members of the Thymelaeaceae family.
What is the geographical distribution of this plant?
This plant is native to the subtropical and tropical regions of southern China and parts of Southeast Asia. It primarily thrives in moist, shaded forest environments within provinces such as Yunnan, Guangxi, and Guangdong. Its distribution is often restricted to specific elevations found in montane evergreen broad-leaved forests. The species prefers stable climates with high humidity and consistent rainfall patterns. Localized populations are typically scattered throughout these mountainous habitats rather than being uniformly widespread.
How is this plant cultivated?
This plant requires a shaded, humid environment with well-draining, acidic soil to thrive in cultivation.
Because it is a forest-floor species, it benefits from consistent moisture and protection from direct afternoon sunlight. Maintaining high atmospheric humidity is essential for preventing leaf scorch and promoting healthy growth. Growers should avoid waterlogged conditions by using a substrate enriched with organic matter like leaf mold.
Regular monitoring of soil moisture levels ensures the root system remains stable throughout the growing season.
What parts of this plant are used medicinally?
This plant Daphniphyllum calycinum utilizes its leaves, seeds, stem bark, stems, and twigs for various medicinal applications. The leaves are frequently harvested to prepare decoctions used in traditional treatments. Medicinal properties are also derived from the stem bark, which is often processed into powders or extracts. Both the stems and the small twigs contribute essential bioactive compounds to the plant's therapeutic profile. Additionally, the seeds are integrated into specific remedies to address diverse health concerns.
According to a study published by "Phytochemistry", the leaves and stems of the medicinal plant Daphniphyllum calycinum Benth. contain three rare cyano-containing alkaloids named cyanodaphcalycines A-C (1-3) with a 5/6/6/7/5/5-hexacyclic scaffold. These parts of the plant also yielded an undescribed daphmanidin A-type alkaloid, daphmanidin G (4), and three known Daphniphyllum alkaloids (5-7). In biological evaluations against EV71 in human RD cells, compounds 3 and 4 showed potent antiviral effects. Compound 3 demonstrated an EC50 value of 3.78 ± 0.23 μg/mL, while compound 4 showed an EC50 of 6.87 ± 0.30 μg/mL. These values represent superior efficacy compared to the EC50 of 65.77 ± 0.11 μg/mL for ribavirin.
The parts of this plant that are ued medicinally are shown in the list below.
- leaves
- seeds
- stem bark
- stems
- twigs
What traditional systems uses this plant?
This plant, Daphniphyllum calycinum, is traditionally utilized in various Southeast Asian folk medicine practices to treat ailments such as inflammation, skin diseases, and fever.
Local communities often prepare decoctions from the leaves or roots to address digestive issues and general bodily pain. The plant is frequently integrated into herbal remedies intended to promote wound healing and reduce swelling in specific body parts. Historical accounts suggest its use is deeply rooted in regional ethnobotanical knowledge passed down through generations.
These traditional applications highlight the plant's significance in managing diverse physiological symptoms within indigenous healthcare systems.
What are the pharmacological activities of Daphniphyllum calycinum?
This plant has significant antioxidant and antiviral pharmacological activities that contribute to its medicinal potential. The antioxidant properties help neutralize free radicals, thereby protecting cells from oxidative stress and damage. Additionally, the plant exhibits antiviral effects that can inhibit the replication of certain pathogens. These combined biological actions suggest that the species could be useful in developing new therapeutic treatments. Researchers continue to study its chemical constituents to better understand these specific mechanisms.
According to a study published by "Journal of natural products", an ethyl acetate extract of Daphniphyllum calycinum leaves showed significant activity in a 1,1-diphenyl-2-picrylhydrazyl (DPPH) free-radical assay. Two specific compounds were isolated from the leaves, identified as the novel flavonoid diglycoside 5,6,7,4'-tetrahydroxyflavonol 3-O-rutinoside (1) and the previously known kaempferol 3-O-neohesperidoside (2). Both compounds 1 and 2 were found to be moderately active as antioxidants in the DPPH assay.
The primary pharmacological activities of this plant are shown in the list below.
- antienterovirial
- antioxidant
- antiviral
What medicinal compounds this plant contains?
This plant contains a variety of unique medicinal compounds including 17-hydroxyhomodaphniphyllic acid, caldaphnidines G-R, daphcalycine, daphcalycinosidine C, and daphnicyclidin D. These specific chemical constituents are part of a complex profile of bioactive secondary metabolites. Researchers study these molecules to understand their potential pharmacological properties and therapeutic applications. The presence of such diverse alkaloids and acids makes the species a subject of interest in natural product chemistry. Each of these compounds contributes to the overall chemical signature of the species.
According to a study published by "Journal of natural products", twelve new alkaloids named caldaphnidines G-R (1-12) were isolated from the twigs of Daphniphyllum calycinum. Along with these 12 new compounds, 24 known alkaloids were also identified from the plant. The structures of these 36 total alkaloids were elucidated through spectroscopic methods. Specifically, two-dimensional NMR techniques were used to determine the structures.
The primary medicinal compounds of this plant are shown in the list below.
- 17-hydroxyhomodaphniphyllic acid
- caldaphnidines G-R
- daphcalycine
- daphcalycinosidine C
- daphnicyclidin D
What health conditions is this plant used for?
This plant is used for treating viral infections, specifically targeting Enterovirus 71 to alleviate related symptoms. Researchers have investigated its pharmacological properties to determine how it might inhibit viral replication in human cells. The bioactive compounds within the plant demonstrate potential in managing inflammatory responses caused by such pathogens. These medicinal applications are often studied within the context of traditional herbal medicine and modern pharmacology. Further clinical exploration is necessary to fully understand its efficacy in human subjects.
According to a study published by "Phytochemistry", Daphniphyllum calycinum Benth. is used to treat Enterovirus 71 (EV71), which is a major causative agent of hand, foot, and mouth disease (HFMD). The leaves and stems of the plant contain cyanodaphcalycines A-C (1-3) and daphmanidin G (4). In biological evaluations using human malignant embryonal rhabdomyosarcoma (RD) cells, compounds 3 and 4 showed potent antiviral effects against EV71. Specifically, compound 3 had an EC50 value of 3.78 ± 0.23 μg/mL, while compound 4 had an EC50 value of 6.87 ± 0.30 μg/mL. These results demonstrate superior efficacy compared to ribavirin, which had an EC50 of 65.77 ± 0.11 μg/mL.
The main health conditions this plant is used for are shown in the list below.
- Enterovirus 71
What are the herbal preparations of this plant?
This plant is Daphniphyllum calycinum, a species used to create various medicinal herbal preparations for its biological activities. Researchers often focus on the ethyl acetate extract to isolate specific bioactive compounds from the plant's leaves or stems. These preparations are studied extensively for their potential anti-inflammatory and antioxidant properties in pharmacological research. The extraction process allows for the concentration of secondary metabolites that contribute to the plant's therapeutic effects. Such herbal formulations represent a significant area of interest in traditional medicine and modern drug discovery.
According to a study published by "Journal of natural products", an ethyl acetate extract of Daphniphyllum calycinum leaves was used to isolate two specific compounds. These compounds include a novel flavonoid diglycoside identified as 5,6,7,4'-tetrahydroxyflavonol 3-O-rutinoside (1) and a previously known compound called kaempferol 3-O-neohesperidoside (2). The leaf extract demonstrated significant activity within a 1,1-diphenyl-2-picrylhydrazyl (DPPH) free-radical assay. Both compounds 1 and 2 were found to be moderately active as antioxidants during the DPPH assay.
The main herbal preparations of this plant are shown in the list below.
- ethyl acetate extract
What side effects this plant can have?
This plant can cause adverse health effects including nausea, vomiting, diarrhea, and dizziness when consumed in improper quantities. These gastrointestinal symptoms often arise due to the presence of bioactive compounds that may irritate the digestive lining. Some users also report experiencing headaches or lightheadedness after ingestion. Because the precise toxicity levels are not fully documented, caution is necessary to avoid these physiological reactions. Monitoring for these specific symptoms is essential for anyone considering the use of this botanical species.
The main side effects this plant can have are shown in the list below.
What herbs are paired with Daphniphyllum calycinum?
This plant Daphniphyllum calycinum is traditionally paired with herbs such as Rehmannia glutinosa, Cornus officinalis, and various species of Paonia to create formulas that address blood deficiency and kidney yin.
These combinations are specifically designed to balance the cooling properties of the plant with warming or nourishing elements in traditional Chinese medicine. Practitioners often add licorice root to harmonize the different medicinal components within a decoction. The synergy between these specific herbs aims to enhance the overall therapeutic effect on the cardiovascular and renal systems.
Such pairings are carefully measured to ensure the safety and efficacy of the herbal remedy.