Coleus forskohlii
What's the taxonomical classification of Coleus forskohlii?
Coleus forskohlii belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida, it is categorized under the subclass Magnoliidae. The plant follows the order Lamiales and is a member of the family Lamiaceae. Taxonomically, it is identified by the genus Coleus, with its specific designation being the species forskohlii.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Coleus |
| Species | forskohlii |
What are the morphological characteristics of this plant?
Coleus forskohlii has large, ovate to elliptical leaves that can reach up to 15 centimeters in length, characterized by a deep green color and prominently serrated margins. The leaf surfaces often display a slightly textured or rugose appearance due to a well-defined network of veins. This perennial herb typically grows in a bushy habit with square, succulent stems characteristic of the Lamiaceae family. The plant produces small, inconspicuous flowers that are usually arranged in terminal spikes. Its overall structure is robust, allowing the foliage to form a dense and spreading mound.
What is the geographical distribution of this plant?
This plant is native to the tropical regions of Africa, specifically found throughout the moist, lowland environments of sub-Saharan countries such as Ethiopia, Nigeria, and the Democratic Republic of the Congo. It thrives primarily in humid, shaded areas where soil moisture remains consistent. The species is also frequently documented in parts of South and Southeast Asia due to its ability to adapt to similar tropical climates. Its distribution is strictly limited to regions that maintain high temperatures and significant rainfall throughout the year. Because it is sensitive to frost, it does not naturally occur in temperate or arid zones.
How is this plant cultivated?
This plant, Coleus forskohlii, requires well-draining, nutrient-rich soil, consistent moisture, and high temperatures between 70 and 90 degrees Fahrenheit to thrive.
It is best cultivated in tropical or subtropical environments where it can receive bright, indirect sunlight. Because it is highly sensitive to frost, gardeners often grow it in containers to move indoors during colder periods. Regular watering is essential to prevent the soil from drying out completely, though it must not sit in stagnant water.
Successful cultivation often involves providing high humidity to mimic its native Indian habitat.
What parts of this plant are used medicinally?
This plant is primarily utilized for its medicinal properties through the use of the leaf, which contains the active compound forskolin. While the leaf is the main component in many extracts, researchers also investigate the chemical potential found within the root and the stem. Some studies examine the rhizome to determine if it offers similar bioactive benefits to the foliage. Although the flower is part of the plant's lifecycle, it is rarely the focus of therapeutic applications. Collectively, these different parts serve as the foundation for understanding the plant's full medicinal profile.
According to a study published by "Environmental science and pollution research international", leaf and root methanolic extracts of Coleus forskohlii were investigated via various in vitro assays. These extracts were evaluated for their DPPH radical-, superoxide radical-, hydrogen peroxide-, hydroxyl radical-, and nitric oxide radical scavenging activities, as well as ferrous ion chelating activity and reducing power. The study looked at the effects of supplemental ultraviolet-B radiation at 3.6 kJ m(-2) day(-1) above ambient. While supplemental UV-B reduced essential oil content by approximately 7 %, methanolic extracts from treated plant organs showed more potency as free radical scavengers with EC50 values lower than their respective controls. Anomalies in Fe(2+) chelating activity were observed for both the leaves and roots.
The parts of this plant that are ued medicinally are shown in the list below.
- leaf
- root
- stem
- flower
- rhizome
What traditional systems uses this plant?
This plant, Coleus forskohlii, has been utilized for centuries within the Ayurvedic medicinal system of India to treat various physiological ailments. Practitioners historically prepared the plant in various forms, such as decoctions or oils, to manage respiratory issues and digestive discomfort. It was frequently applied topically to soothe skin irritations and promote healing in wounded tissues. Additionally, traditional healers relied on its properties to address conditions related to inflammation and metabolic imbalances. This long history of empirical use provided the foundational knowledge that eventually led to modern scientific investigation of its bioactive compounds.
According to a study published by "Microbial ecology", Coleus forskohlii is a perennial medicinal shrub cultivated mainly for its forskolin content. Since ancient times, the plant has been used in ayurvedic traditional medicines for the treatment of hypertension, glaucoma, asthma, congestive heart failures, obesity, and cancer. The root cork of Coleus forskohlii is the exclusive location where the forskolin biosynthesis pathway is present. Endophyte treatments have also conferred an 80% antagonistic activity against nematode galls.
The hystorical systems that uses this plant are shown in the list below.
- Ayurveda
What are the pharmacological activities of Coleus forskohlii?
This plant has pharmacological activities including anti-inflammatory properties, asthma treatment, diabetes treatment, treatment of glaucoma, and treatment of congestive heart failure. The active compound forskolin plays a crucial role in modulating adenylate cyclase to influence various physiological processes. Its ability to relax smooth muscle makes it particularly effective for managing bronchial constriction in asthma patients. Additionally, the plant helps regulate insulin secretion and glucose metabolism to assist in diabetes management. It also demonstrates potential in reducing intraocular pressure for glaucoma and improving cardiac contractility in congestive heart failure cases.
According to a study published by "Frontiers in plant science", Coleus forskohlii produces genkwanin, which is the only flavone reported from the plant. This specific metabolite, genkwanin, is known to possess anti-inflammatory activity. The biosynthesis of genkwanin involves the conversion of the general flavonoid precursor naringenin. The study identifies two differentially expressed cytochrome P450 genes, CfCYP93B and CfCYP706C, which exhibit maximum expression in leaf tissues. Through mannitol treatment, the expression of CfCYP93B increased while the expression of CfCYP706C decreased. This shift in gene expression resulted in increased genkwanin content and decreased anthocyanin levels.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- asthma treatment
- diabetes treatment
- heart failure treatment
- treatment of glaucoma
What medicinal compounds this plant contains?
This plant contains the bioactive diterpene forskolin alongside several related glycosides known as forskoditerpenoside A, forskoditerpenoside B, forskoditerpenoside C, and forskoditerpenoside D. These specific medicinal compounds are primarily recognized for their ability to influence cellular signaling pathways. Forskolin acts as a potent activator of the enzyme adenylate cyclase, which increases intracellular levels of cyclic AMP. The forskoditerpenoside derivatives represent a specialized group of molecules that share structural similarities with the primary diterpene. Researchers study these various constituents to understand their potential therapeutic applications in managing diverse physiological conditions.
According to a study published by "Pharmacognosy research", the root extract of Coleus forskohlii was standardized to 30% after using toluene to extract Forskolin from dry roots. The characterization of the extract through X-ray diffraction revealed the presence of sulfur trioxiode (SO3) and trimer of sulfur trioxiode (S3 O9). Elemental analysis of the plant identified carbon, oxygen, magnesium, aluminum, silicon, phosphorous, and sulfur. Among these identified elements, carbon showed the highest weight at 75.49% in comparison to all other elements.
The primary medicinal compounds of this plant are shown in the list below.
- Forskolin
- Forskolin A
- Forskolin D
- Forskolin G
- Forskolin H
What health conditions is this plant used for?
This plant is used for treating asthma, heart disease, heart failure, hypertension, and obesity. The active compound forskolin in the plant helps relax smooth muscles, which can assist in opening airways for those suffering from asthma. It also has significant effects on cardiovascular health by modulating calcium channels to manage heart disease and heart failure. Additionally, the plant's ability to influence metabolic processes makes it a subject of interest for managing hypertension and obesity. These diverse physiological effects stem from its complex interaction with various cellular signaling pathways.
According to a study published by "Applied microbiology and biotechnology", Coleus forskohlii is a medicinal plant whose leaf and root extracts are utilized for the treatment of various ailments including bronchitis, asthma, hay fever, angina and abdominal disorders. The major metabolite forskolin is found exclusively in the cork cells of the root and is used commercially for the treatment of glaucoma, asthma and several heart ailments. Additionally, the essential oil extracted from the tubers of the plant exhibits anti-microbial properties. The review also addresses biotechnological approaches for mass propagation of plantlets and the amelioration of forskolin production.
The main health conditions this plant is used for are shown in the list below.
- asthma
- heart disease
- heart failure
- hypertension
- inflammation
What are the herbal preparations of this plant?
This plant is Coleus forskohlii, which is processed into medicinal preparations including ethanol extract, methanolic extracts, and essential oil to isolate bioactive forskolin. The ethanol extract is frequently used in pharmacological studies to study its effects on cellular signaling and metabolic processes. Methanolic extracts are also common in laboratory research due to their ability to efficiently pull specific diterpenes from the plant matter. The essential oil provides a concentrated aromatic form that contains various volatile organic compounds. These diverse preparations allow researchers to target different physiological functions through standardized dosing.
According to a study published by "Chemical & pharmaceuctaical bulletin", two new labdane diterpene glycosides named forskoditerpenoside A and B, labeled as 1 and 2, were isolated from the ethanol extract of the whole plant of Coleus forskohlii. A new euudesmane sesquiterpene, 4beta,7beta,11-enantioeudesmantriol (3), was also isolated from the plant. This study provides the first report about the occurrence of glycosides derived from the labdane diterpene, 8,13-epoxy-labd-14-en-11-one, in nature. The structure of compound 3 was confirmed by X-ray diffraction. Additionally, compounds 1 and 2 demonstrated relaxative effects on isolated guinea pig tracheal spirals in vitro.
The main herbal preparations of this plant are shown in the list below.
- ethanol extract
- methanolic extracts
- essential oil
What side effects this plant can have?
This plant can cause serious health side effects including asthma, convulsions, hepatic changes, hypertension, and increased acid level. Individuals using this botanical may experience respiratory distress through the onset of asthma or neurological complications like convulsions. Some users have also reported hepatic changes that may indicate potential damage to the liver. Furthermore, the plant is linked to hypertension and a rise in gastric acid levels. These diverse reactions highlight the need for caution when consuming Coleus forskohlii.
According to a study published by "Microbial ecology", Coleus forskohlii is a perennial medicinal shrub used in ayurvedic traditional medicines for the treatment of hypertension, glaucoma, asthma, congestive heart failures, obesity, and cancer. The plant is primarily cultivated for its forskolin content. Research investigated the use of three fungal endophytes to enhance this content, with the root endophyte RF1 and shoot endophytes SF1 and SF2 increasing forskolin by 52 to 88% in pot experiments and 60 to 84% in field experiments. These endophyte treatments also provided an 80% antagonistic activity against nematode galls. The study noted that the expression of diterpene synthases such as CfTPS1, CfTPS2, CfTPS3, and CfTPS4 was significantly upregulated in the treated plants.
The main side effects this plant can have are shown in the list below.
- asthma
- convulsions
- hepatic changes
- hypertension
- increased acid level
What herbs are paired with Coleus forskohlii?
This plant Coleus forskhlolii is most frequently paired with herbs like ashwagandha, ginger, and turmeric to enhance its metabolic and cardiovascular benefits.
These botanical combinations are often utilized in Ayurvedic formulations to create synergistic effects on hormone regulation and physical stamina. Ginger is frequently included to improve the bioavailability of the plant's active forskolin compound through its warming digestive properties. Turmeric serves as a powerful anti-inflammatory partner that complements the plant's ability to support healthy cellular function.
Together, these herb pairings aim to provide a holistic approach to managing weight and respiratory health.