Paeonia rockii

What's the taxonomical classification of Paeonia rockii?

Paeonia rockii belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it is situated in the class Equisetopsida and the subclass Magnoliidae. Moving down the taxonomic hierarchy, the plant falls under the order Saxifragales and is a member of the family Paeoniaceae. It is specifically categorized within the genus Paeonia, with the species designation rockii.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Saxifragales
Family Paeoniaceae
Genus Paeonia
Species rockii
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Paeonia rockii has large, compound leaves with dark green, leathery leaflets and massive, solitary flowers that feature deep red to dark burgundy petals surrounding a central cluster of golden stamens. These striking blooms can reach up to 20 centimeters in diameter and are supported by sturdy, upright stems. The foliage is deeply lobed, providing a lush, dense texture to the plant's overall structure. During the growing season, the plant develops a robust root system that supports its significant height and heavy floral displays. As the flowers fade, the plant transitions into a period of vegetative growth characterized by its persistent, spreading greenery.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is endemic to the mountainous regions of central and eastern China, specifically found in provinces such as Henan, Hubei, and Anhui. It typically thrives in high-altitude environments where it occupies rocky slopes and forest edges. The species prefers well-drained soils often found within deciduous woodland habitats. Its distribution is relatively localized compared to other peony species, which limits its natural range to specific limestone or granite outcrops. These unique ecological niches provide the necessary moisture and shade required for its survival.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, Paeonia rockii, requires well-draining, fertile soil and a location that offers full sun to partial shade to thrive.

It is a deciduous perennial that prefers moderate moisture but must avoid sitting in stagnant water to prevent root rot. Planting should occur in early spring or autumn when the soil is cool and moist. Providing adequate space for its spreading root system is essential for long-term health and vigorous blooming.

Once established, these peonies are relatively hardy and can persist in a garden for many years with minimal intervention.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant Paeonia rockii provides medicinal value primarily through its root cortex, which is harvested to extract bioactive compounds. While the root cortex is the most significant part used in traditional formulations, other components like the leaf and seed have been studied for their specific chemical properties. The flower and carpel can also be utilized in various herbal preparations depending on the desired therapeutic effect. Each part contributes unique elements to the plant's overall medicinal profile.

According to a study published by "Phytochemistry", the species Paeonia rockii is one of 8 species belonging to the section Moutan. This section contains a wide range of metabolites including monoterpenoid glucosides, flavonoids, tannins, stilbenes, triterpenoids, steroids, paeonols, and phenols. In a study of 23 tree peony samples, 47 peaks exhibited an occurrence frequency of 75%. Among these, 43 metabolites were identified, which included 17 monoterpenoid glucosides, 11 galloyl glucoses, 5 flavonoids, 6 paeonols, and 4 phenols. The research used HPLC-DAD and multivariate analyses to examine the potential pharmaceutical value of the effective constituents.

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

  • root cortex
  • leaf
  • seed
  • flower
  • carpel
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant Paeonia rockii has been utilized in Traditional Chinese Medicine for centuries to treat various ailments through its dried root bark. Practitioners primarily employ the plant to regulate menstruation, alleviate abdominal pain, and clear heat from the body. Historical applications often focus on its ability to nourish the blood and calm liver yang to manage symptoms like dizziness or irritability. Beyond these specific uses, it has been integrated into complex herbal formulas designed to balance internal organ functions. This long-standing botanical history underscores its significance in ancient therapeutic practices.

According to a study published by "The Science of the total environment", Paeoina rockii is an economically important plant species belonging to the Paeoina (Paeoniaceae) genus. It is used as one of many popular ornamentals and medicinal plant species in traditional Chinese medicine. The moderate and high suitable areas for P. rockii encompassed ca. 1.89×10^5 km^2. UVB-4 and annual precipitation were identified as the most critical factors shaping the distribution of P. rockii. Under the RCP8.5 scenario with higher concentrations of emissions, the suitable habitat range of P. rockii increased.

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

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

What are the pharmacological activities of Paeonia rockii?

This plant has antibacterial and antioxidant pharmacological activities. Its antioxidant properties help neutralize harmful free radicals and reduce oxidative stress within biological systems. Additionally, the plant exhibits antibacterial effects that can inhibit the growth of various pathogenic microorganisms. These combined medicinal qualities make it a subject of significant interest in pharmaceutical research. Scientists continue to investigate how these specific chemical constituents interact with human cells to promote healing.

According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", the flowers and leaves of Paeonia rockii demonstrate antibacterial activity against 7 strains, including Staphylococcus aureus, S. epidermidis, Bacillus subtilis, B. cereus, Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa. In vitro experiments revealed that the methanol extraction of flowers possesses the strongest antibacterial effect. Network pharmacology screening identified a total of 29 activity ingredients and 18 targets within the flowers and leaves of Paeonia rockii. The study predicts that the antibacterial components are mainly flavonoids and phenolic acids. The primary mechanism of action is to inhibit the synthesis of bacterial proteins.

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

  • Since the list provided only contains two items ("antibacterial" and "antioxidant"), it is impossible to extract five. However, based on the provided text, the available activities are:
  • antibacterial
  • antioxidant
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains a diverse array of bioactive medicinal compounds including paeonol, various paeoonols, flavonoids, monoterpenoid glucosides, and triterpenoids. These chemical constituents are responsible for the significant pharmacological activities attributed to the species. The presence of flavonoids contributes to the plant's antioxidant and anti-inflammatory properties. Additionally, the monoterpenoid glucosides and triterpenoids play crucial roles in its therapeutic potential. Together, these specific molecules form the foundation of the plant's traditional and scientific medicinal value.

According to a study published by "Food research international (Ottawa, Ont.)", Paeonia rockii seeds were found to have the highest total flavonoid content among the nine tree peony species studied. This specific plant also demonstrated the strongest DPPH and ABTS radical scavenging activities. Additionally, Paeonia rockii exhibited the strongest cupric reducing capacity. The study identified that the content of the phenolic compounds luteolin and paeonol, along with the total flavonoid content, were significantly correlated with four antioxidant activities. Among the sixteen individual phenolic compounds quantitatively measured, (+)-catechin was the most abundant component.

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

  • paeonol
  • paeonols
  • flavonoids
  • monoterpenoid glucosides
  • phenolic acids
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for no relevant health conditions found in the list. While many species within the peony genus are studied for medicinal properties, there is no established clinical data linking Paeoina rockii to specific disease treatments. Most existing literature focuses on its botanical characteristics or its potential role in traditional herbal practices rather than proven medical applications. Consequently, it should not be utilized as a substitute for professional medical advice or treatment.

As discussed in a study, the flowers and leaves of Paeonia rockii exhibit antibacterial activity against 7 strains, which include Staphylococcus aureus, S. epidermidis, Bacillus subtilis, B. cereus, Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa. The methanol extraction of the flowers demonstrates the strongest antibacterial effect during in vitro experiments. Network pharmacology screening identified a total of 29 activity ingredients and their 18 targets within the flowers and leaves of Paeonia rockii. These antibacterial components are predicted to be mainly flavonoids and phenolic acids. The main mechanism of action for these components is to inhibit the synthesis of bacterial proteins.

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

  • Bacillus cereus
  • Bacillus subtilis
  • Escherichia coli
  • Klebsiella pneumoniae
  • Pseudomonas aeruginosa
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Paeoina rockii, which is utilized to create diverse medicinal herbal preparations including methanol extraction and therapeutic oil. The methanol extraction process is frequently employed to isolate bioactive compounds like paeoniflorin from the roots. These concentrated extracts are often studied for their potential anti-inflammatory and analgesic properties. Additionally, the plant can be processed into a specialized oil used for topical applications or as a base for other medicinal formulas. Such preparations provide various ways to harness the botanical's chemical constituents for health purposes.

According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", the flowers and leaves of Paeonia rockii exhibit antibacterial activity, particularly the methanol extraction of flowers. Through network pharmacology, a total of 29 activity ingredients and their 18 targets were screened in the flowers and leaves of Paeonia rockii. The antibacterial components are predicted to be mainly flavonoids and phenolic acids. The main mechanism of action is to inhibit the synthesis of bacterial proteins. This research explored the antibacterial effects of Paeonia rockii against 7 strains, including Staphylococcus aureus, S. epidermidis, Bacillus subtilis, B. cereus, Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa.

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

  • methanol extraction
  • oil
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can cause allergic reactions, nausea, digestive upset, dizziness, and hormonal fluctuations in some individuals. Some users may experience skin rashes or itching as part of an adverse immune response. Common gastrointestinal issues like stomach pain or nausea often arise after consumption. Neurological symptoms, specifically episodes of dizziness, have also been reported by those taking the plant. Additionally, the botanical properties of the species may lead to unexpected hormonal fluctuations in the body.

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

  • Allergic reactions
  • Nausea
  • Digestive upset
  • Dizziness
  • Hormonal fluctuations
Evidence Level: ★☆☆☆☆

What herbs are paired with Paeonia rockii?

This plant is frequently paired with herbs such as Rehmannia glutinosa, Angelica sinensis, and Ligusticum chuanxiong to address blood deficiency and stagnation.

These combinations are commonly used in traditional formulas to nourish the blood and promote circulation throughout the body. When paired with Rehmannia, it helps to strengthen the kidneys and tonify yin levels. The addition of Angelica sinensis enhances its ability to replenish blood and regulate menstrual cycles.

Practitioners may also include peony root in decoctions alongside ginger to harmonize the stomach and improve digestion.

Evidence Level: ★☆☆☆☆