Rubia tinctorum

What's the taxonomical classification of Rubia tinctorum?

Rubia tinctorum belongs to the kingdom Plantae and is classified within the phylum Streptophyta. Its taxonomic hierarchy continues through the class Equisetopsida and the subclass Magnoliidae, placing it within the order Gentianaales. Furthermore, this plant is a member of the family Rubiaceae and is categorized under the genus Rubia, specifically identified by the species epithet tinctorum.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Gentianales
Family Rubiaceae
Genus Rubia
Species tinctorum
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Rubia tinctorum has a perennial, creeping rhizomatous habit with square stems that are armed with four rows of small, spreading prickles. The leaves are simple, opposite, and lanceolate in shape, measuring several centimeters in length with entire margins. These leaves are arranged in whorls of four at each node along the climbing stems. Small, tubular, pinkish-white flowers emerge from the leaf axils during the blooming season. The plant eventually produces small, fleshy drupes that turn dark red or black when ripe.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to the temperate regions of Europe, Western Asia, and North Africa. It thrives in various habitats including dry grasslands, open woodlands, and rocky slopes throughout the Mediterranean basin. While its natural range is concentrated in these Old World territories, it has been introduced to other parts of the world for its dye-producing properties. Some populations have become established in North America due to human cultivation. The species generally prefers well-drained soils and sunny or partially shaded environments.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant Rubi la tinctorum requires well-drained, fertile, loamy soil and a temperate climate with full sunlight to produce the high concentrations of alizarin found in its roots.

Growers typically sow the seeds in the spring and must allow the plants to grow for three to four years before harvesting. During this period, regular weeding and consistent moisture management are essential to ensure healthy root development. Once the roots reach maturity, they are carefully dug up, cleaned, and dried for use in textile dyeing.

Proper cultivation practices are necessary to maximize the yield of red pigment for industrial and artistic applications.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant uses its roots medicinally to treat various ailments due to the presence of specific anthraquinones. These underground structures are harvested and dried to preserve their potent chemical compounds. Practitioners often utilize the root extracts to stimulate bowel movements and act as a mild laxative. Additionally, the substance can be used in traditional preparations to support liver function and skin health. The concentration of active ingredients in the root makes it the most valuable part for therapeutic applications.

According to a study published by "Phytotherapy research : PTR", the Madder root (Rubia tinctorum) was identified as one of the most potent anti-mitoitcs independent of toxicity. This research utilized a high-through put microarray format to screen 897 aqueous extracts at concentrations ranging from 0.00015-0.5 mg/mL. The screening focused on anti-mitotic effects on the proliferation of MDA-MB-231 cells. Data showed that less than 1.34 % of the extracts tested exhibited inhibitory growth (IG50) properties <0.0183 mg/mL.

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

  • root
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, Rubi la tinctorum, was historically valued for its potent red dye extracted from the roots and utilized in various traditional healing practices. In Traditional Chinese Medicine, related species within the Rubiaceae family have been employed to clear heat and resolve toxicity. Ancient practitioners often used root extracts to treat skin conditions and promote blood circulation. Beyond medicinal applications, the intense pigments were essential for dyeing textiles in many early civilizations. This dual utility made the plant a staple in both apothecary cabinets and weaving workshops throughout history.

According to a study published by "Yao xue xue bao = Acta pharmaceutica Sinica", traditional Chinese medicine is usually available as decoction slices. The study utilized powder X-ray diffraction analysis with a complete absorption profile to examine three groups of TCM drugs, including radix Rubiae. Researchers discovered differences between 3 radix Rubiae samples gathered from different localities and Rubia tinctorum. Topological regularity and characteristic peaks of the absorption profile were obtained as a fingerprint in the X-ray diffraction diagrams of the pertinent medicinal materials. This method points to a promising prospect in achieving an objective assessment of genuineness at TCM drugs.

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

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

What are the pharmacological activities of Rubia tinctorum?

This plant has anti-inflammatory, anti-mitotic, antibacterial, anticancer, and antifungal pharmacological activities derived primarily from its anthraquinone content. The presence of specific secondary metabolites allows the extract to inhibit the growth of various pathogenic bacteria and fungal species. Furthermore, its anti-inflammatory properties help in reducing swelling and managing immune responses within biological systems. Research also indicates that the plant exhibits anti-mitotic effects which contribute to its potential as an anticancer agent. These diverse biological functions make Rubiacia tinctorum a significant subject for further pharmaceutical development.

According to a study published by "Metabolites", Rubiia tinctorum is a medicinal plant that contains anthraquinones, particularly alizarin and purpurin. These specific compounds possess pharmacological effects that are anti-inflammatory, antioxidant, anticancer, hemosatatic, and antibacterial. Because the amount of anthraqquinones in different Rubiia species is minimal, researchers have established cell and organ cultures to produce them. These investigations involve various chemical and physical parameters to affect biomass and the accumulation of secondary metabolites in cell, callus, hairy root, and adventitious root suspension cultures. Additionally, cells can be grown in bioreactor cultures to produce these anthraqquinones.

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

  • anti-inflammatory
  • anti-mitoitic
  • antibacterial
  • anticancer
  • antifungal
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains several key medicinal and bioactive compounds including alizarin, anthragallol, lucidin, purpurin, and rubiadin. These anthraquinone derivatives are primarily responsible for the plant's distinct coloring properties and its pharmacological effects. Alizarin and purpurin are well-known for their roles in dye production and potential antimicrobial activities. Lucidin and rubiadin contribute to the complex chemical profile used in various traditional medicinal applications. Anthragallol also plays a significant role in the overall biochemical composition of the roots. Together, these specific molecules define the therapeutic potential of Rubi la tinctorum.

According to a study published by "Planta medica", the anthraquinone aglycones from Rubia tinctorum L. (Rubiaceae) were examined for mutagenicity. The compounds tested included pure alizarin, xanthopuropurin, lucidin, and a crude mixture of anthraqquinone aglycones. No significant increase in the frequency of mutant spots was observed after treating Drosophila larvae with alizarin, xanthopuropurin, lucidin, or the crude mixture. In contrast, the naphthohydroquinone mollugin induced mainly single spots that can originate from somatic mutation or mitotic recombination. Twin spots consisting of both the mwh and flr3 subclones were also enhanced, though the increase was only marginally significant. The study suggests that mollugin exhibits both mutagenic and recombinagenic activities.

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

  • alizarin
  • purpurin
  • rubiadin
  • lucidin
  • anthraquinones
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for treating bladder stones, kidney stones, bleeding, inflammation, and oxidative stress. Its bioactive compounds work to reduce internal swelling and mitigate cellular damage caused by oxidative stress. In traditional practices, it is often employed to manage various types of bleeding and promote healing. Furthermore, the plant is utilized to help alleviate discomfort associated with urinary tract issues like kidney and bladder stones. This diverse range of medicinal properties makes it a valuable resource in herbal pharmacology.

According to a study published by "Mutation research", Rubia tinctorum L. is a medicinal plant used for the treatment of kidney and bladder stones. The plant contains a characteristic spectrum of 9,10-anthraquinone derivatives that are substituted in only 1 of the aromatic benzo rings. The majority of the anthraquinones present in the plant itself or in plant extracts are glycosides. The study suggests that the therapeutic use of Rubia tinctorum may involve a carcinogenic risk.

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

  • bladder stones
  • bleeding
  • inflammation
  • kidney stones
  • oxidative stress
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Rubi la tinctorum, a species used to create medicinal herbal preparations such as Rubi TeeP aqueous extracts, chloroform extracts, and tinctures. These preparations utilize the roots of the plant to harness its specific chemical properties for therapeutic use. Aqueous extracts are commonly prepared by steeping the plant material in water to pull out water-soluble compounds. In contrast, the chloroform extract is used to isolate more non-polar components through organic solvent processing. Tinctures serve as another vital form, where alcohol is used to preserve the active constituents in a concentrated liquid state.

According to a study published by "Carcinogenesis", Rubia Teep is a herbal drug made from Rubia tinctorum containing lucidin. When Rubia Teep was incubated with primary rat hepatocytes for 24 h, it gave rise to DNA adducts. In an oral treatment of male Parkes mice for 4 days, Rubia Teep was administered at a dosage of 1/2 tablet/d. This administration resulted in the formation of DNA adducts in the liver, kidney, duodenum, and colon. While lucidin formed up to five different DNA adducts in the range from 0.995 to 3.05 adducts/10(8) nucleotides, the adduct patterns for Rubia Teep were organ-specific.

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

  • Rubia Teep
  • aqueous extracts
  • chloroform extract
  • tinctures
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can induce serious health complications through the formation of DNA adducts and a subsequent increased carcinogenic risk. The primary toxic mechanism involves the metabolic activation of its chemical components into highly reactive intermediates. These reactive substances bind covalently to genetic material, which leads to the direct formation of DNA adducts. Such structural damage to the genome can cause mutations during cell division. Over time, these accumulated genetic errors significantly elevate the risk of developing various types of cancer.

According to a study published by "Carcinogenesis", Rubia tinctorum L. is associated with a carcinogenic risk. In a study where male and female ACI rats received a diet supplemented with 1 or 10% drug for 780 days, dose-dependent increases in benign and malignant tumour formation were observed in the liver and kidneys. While weight gain and morbidity were not different among the 3 groups, non-neoplastic lesions related to the treatment were evident in the liver and kidneys of both sexes. Rats treated with 10% Rubia tinctorum L. in the diet for 2 weeks showed an increase in the overall level of DNA adducts in the liver, kidney and colon. These DNA adducts were analyzed using 32P-post-labelling and HPLC.

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

  • DNA adduct formation
  • carcinogenic risk
Evidence Level: ★★★☆☆

What herbs are paired with Rubia tinctorum?

This plant, Rubi la tinctorum, pairs most effectively with astringent and warming herbs like elderberry, dandelion root, and marshmallow to balance its potent coloring and toning properties.

When used in traditional dye preparations, it often complements yellow-producing plants such as weld or chamomile to create complex orange hues. In herbal formulations, its bitter profile is frequently softened by combining it with sweet or mucilaginous botanicals. These specific combinations help to stabilize the chemical components of the root during infusion.

Practitioners select these pairings based on the desired physiological effect or the specific pigment outcome required.

Evidence Level: ★☆☆☆☆