Rheum rhabarbarum
Rheum rhabarbarum · Accepted scientific name
Scientific literature: Very Sparse (1 studies) · ★☆☆☆☆
Rheum rhabarbarum, commonly known as rhubarb, is a versatile plant primarily utilized for its medicinal properties found in the root and rhizome. It contains significant bioactive chemicals, most notably rhaponticin and rhapontigenin, which drive its therapeutic effects. These compounds allow the plant to function as an antioxidant, a 5-HT inhibitor, a 5-lipoxygenase inhibitor, and an ACE inhibitor. Due to these biological activities, various preparations like Wa-Rhubarb and extracts from the petioles and roots are used to manage conditions such as constipation, gout, and inflammation. Consequently, rhubarb products remain a key component in traditional and modern botanical studies.
- Synonyms
- Rheum Franzenbachii Var. Mongolicum · Rheum Undulatum Var. Crispatum · 7 more
- Common names
- Not available
- Family
- Polygonaceae
- Distribution
- Not available
- Plant Parts
- Root · Rhizome
Classification
Synonyms
Rheum rhabarbarum is a botanical subject characterized by a complex network of taxonomic synonyms. Within scientific literature, this plant is frequently identified by the name Rheum franzenbachii. Its classification further extends to include the specific variety known as Rheum franzenbachii var. mongolicum. Additionally, researchers may encounter the species under the synonymous labels of Rheum macropterum or Rheum muricatum. Finally, the name Rheum sanguineum also serves as another recognized synonym within this botanical group.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Rheum rhabarbarum belongs to the diverse kingdom Plantae, representing a unique branch of the natural world. Within this vast kingdom, it is classified under the class Equisetopsida. The plant is further categorized into the order Caryophyllales, which connects it to various other significant species. It specifically falls under the family Polygonaceae, sharing botanical traits with its relatives in that group. Finally, it is identified by its distinct genus, Rheum, which defines its specific biological identity.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Caryophyllales |
| Family | Polygonaceae |
| Genus | Rheum |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Rheum rhabarbarum is widely distributed across the Asia-Temperate region, showing a strong presence throughout various parts of China. Its range extends significantly through China North-Central, China South-Central, and the Inner Mongolia region. Additionally, this plant is commonly found in the Manchuria area, further establishing its foothold in the continent. Beyond mainland China, its natural habitat also includes the Eastern Asia region of Korea. These diverse locations highlight the plant's adaptability to different temperate climates within East Asia.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Rheum rhabarbarum is a robust herb characterized by its sturdy, self-supporting growth form. This plant typically reaches a significant size, with heights generally ranging from a minimum of 1 meter to a maximum of 4 meters. Depending on its specific environmental conditions, it often establishes a more substantial presence with a minimum height of 1.4 meters. These dimensions contribute to its impressive stature within a garden or natural landscape. Understanding these growth patterns is essential for anyone looking to cultivate this impressive species.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Rheum rhabarbarum, commonly known as garden rhubarb, possesses significant biological properties that contribute to cardiovascular health. Research indicates that extracts from its roots and petioles exhibit potent antioxidant activity. These substances demonstrate a remarkable ability to protect human blood plasma components from oxidative damage triggered by peroxynitrite. By reducing the modification of proteins and lipids, the plant helps maintain critical haemostatic balance within the blood. Such antioxidant efficiency highlights the medicinal value of this species in managing oxidative stress.
Compounds
Rheum rhabarbarum, commonly known as garden rhubarb, serves as a significant source of bioactive stilbenes. Research indicates that this plant species contains the specific compounds rhaponticin and rhapontigenin. These constituent substances are highly valued for their potential roles in supporting cardiovascular health. Specifically, they exhibit notable anti-inflammatory and antioxidant properties when interacting with human blood components. Understanding these chemical relationships highlights the medicinal importance of the extracts found within the plant's roots and petioles.
Conditions
Rheum rhabarbarum is widely utilized in China to treat both constipation and gout. This medicinal plant also serves as a treatment for inflammation. Specifically, its component aloe-emodin has been shown to inhibit lipopolysaccharide-induced inflammatory responses in macrophages. Additionally, products derived from this species are noted for having weak laxative effects.
Preparations
Rheum rhabarbarum is utilized to produce various medicinal and edible preparations, including general rhubarb products. In the historical context of Japan, this specific species is prepared as Wa-Rhubarb. Research also demonstrates that the biological activities of this plant can be studied through extracts from petioles and roots. These specific botanical extracts have shown significant anti-inflammatory and antioxidant effects in human blood plasma and cells. Consequently, the plant serves as a vital source for both traditional medicinal applications and modern pharmacological study.
Parts used
Rheum rhabarbarum is a plant species that has been utilized for centuries in both edible and medicinal applications. Historically, the crude drug products derived from this plant are sourced specifically from its root or rhizome. Scientific studies have focused on these plant parts to evaluate their various biological activities in human cells. For instance, extracts from the roots of this species have demonstrated significant anti-inflammatory and antioxidant properties. Understanding the relationship between the plant's anatomy and its medicinal value remains essential for both traditional and modern pharmacology.