Coreopsis tinctoria
What's the taxonomical classification of Coreopsis tinctoria?
Coreopsis tinctoria belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida and the subclass Magnoliidae, it is organized under the order Asterales. This plant is a member of the widely recognized family Asteraceae, which places it among the sunflowers and daisies. Specifically, it is categorized within the genus Coreopsis, and its unique scientific designation is completed by the species name tinctoria.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Coreopsis |
| Species | tinctoria |
What are the morphological characteristics of this plant?
Coreopsis tinctoria has erect, herbaceous stems that typically reach heights of 30 to 60 centimeters and feature deeply lobed or pinnatifid leaves. The foliage is characterized by narrow, linear segments that are arranged alternately along the slender stalks. Its most prominent morphological feature is the composite flower head, which displays bright yellow ray florets surrounding a central disc of darker yellow or orange tubular florets. The involucral bracts at the base of the flower head are often distinct and help protect the developing buds. These plants often produce multiple blooms throughout the growing season, contributing to a dense, bushy appearance.
What is the geographical distribution of this plant?
This plant is native to the central and southern regions of the United States, extending from Texas through the Gulf Coast states and up into the Midwest. It thrives primarily in open prairies, meadows, and disturbed sites across the Great Plains. While its natural range is concentrated in North America, it has been widely introduced to other temperate regions for ornamental purposes. Many gardeners and landscapers plant it globally due to its ability to grow in diverse soil types. Its distribution is often limited by its preference for sunny, well-drained environments.
How is this plant cultivated?
This plant, Coreopsis tinctoria, is cultivated by sowing seeds directly into well-draining, fertile soil in full sun locations during the spring or autumn.
It thrives in temperate climates and requires minimal supplemental watering once the root system is established. Gardeners often use this species for mass plantings or as a meadow component due to its prolific blooming habit. Because it grows rapidly from seed, it can easily become self-seeding in a landscape.
Regular deadheading can extend the flowering period throughout the summer season.
What parts of this plant are used medicinally?
This plant medicinal uses involve the flowers, leaves, roots, buds, and stems to treat various ailments. The colorful flowers are often harvested for their soothing properties in topical applications. Both the leaves and stems are utilized in herbal preparations to address inflammatory conditions. The roots provide concentrated compounds that are traditionally used for digestive support. Additionally, the buds are sometimes incorporated into tinctures for their specific chemical profile.
According to a study published by "Natural product research", the flowers of Coreopsis tinctoria are used medicinally for their potential to invigorate the spleen and stomach. The optimal extraction of Coreopsis tinctoria extract was determined using a temperature of 80 °C, an extraction period of 10 min, a solid-liquid ratio of 1:70, and 2 times. This extract can significantly increase the faecal water content of mice while inhibiting amylase activity and increasing protease, xylanase, and cellulase activity. It also increases the number of intestinal Lactobacillus and Bifidobacterium while reducing the number of Escherichia coli and Enterococcus. These effects demonstrate that the extract can improve intestinal digestive enzyme activity and has the potential to treat gastrointestinal diseases.
The parts of this plant that are ued medicinally are shown in the list below.
- flower
- leaves
- roots
- buds
- stems
What traditional systems uses this plant?
This plant, Coreopsis tinctoria, has been utilized historically as a medicinal herb and a natural source of yellow dye within various traditional healing frameworks. In traditional Uyghur medicine, practitioners have historically incorporated members of the Asteraceae family to address specific ailments and restore internal balance. Beyond its medicinal applications, the plant's vibrant pigments were traditionally harvested to color textiles and various artisanal products. These historical uses demonstrate the multifaceted role the species played in both health practices and daily material culture. Such legacy applications highlight the plant's long-standing significance in regional botanical traditions.
According to a study published by "Molecules (Basel, Switzerland)", Coreopsis tinctoria Nutt. is an important medicinal plant in traditional Uyghur medicine. The flower of this plant has recently had its skin-lightening potential recognized. In this research, three compounds from the flower were identified as enzyme inhibitors, specifically quercetagetin-7-O-glucoside (1), marein (2), and okanin (3). The IC50 values for quercetagetin-7-O-glucoside (1) and okanin (3) were 79.06 ± 1.08 μM and 30.25 ± 1.11 μM, respectively. These values are smaller than the 100.21 ± 0.11 μM recorded for the positive control kojic acid. These findings demonstrate the promising potential of Coreopsis tinctoria for the development of herbal skin-lightening products.
The hystorical systems that uses this plant are shown in the list below.
- traditional Uyghur medicine
What are the pharmacological activities of Coreopsis tinctoria?
This plant has anti-diabetic, anti-inflammatory, antioxidant, hypoglycemic, and hepatoprotective pharmacological activities. Its antioxidant properties help neutralize harmful free radicals that cause cellular damage within the body. The plant also demonstrates hypoglycemic effects that assist in lowering blood glucose levels to manage diabetes. Additionally, its anti-inflammatory actions can reduce swelling and pain associated with various physiological conditions. Finally, the hepatoprotective qualities of Coreopsis tinctoria work to protect liver cells from toxic substances and injury.
According to a study published by "BioMed research international", the alcohol extract of Coreopsis tinctoria Nutt (AC) administered at 300 mg/kg/day for 10 weeks ameliorates diabetes and diabetic nephropathy in 30 db/db mice. This treatment decreases body weight, fasting blood glucose, and 24 h urinary albumin excretion while alleviating kidney damage. The AC treatment reverses the increased expression of proteins such as PI3K p85α, P-AKT, P-smad3, and COL4 α1 that occurs in diabetic nephropathy mice. By decreasing miR-192 and miR-200b, the extract modulates the PTEN/PI3K/AKT pathway to reduce the degree of renal fibrosis.
The primary pharmacological activities of this plant are shown in the list below.
- anti-diabetic
- anti-hyperglycemic
- hypoglycemic
- anti-inflammatory
- antioxidant
What medicinal compounds this plant contains?
This plant contains a diverse array of bioactive secondary metabolites including flavonoids, flavones, coumarins, phenolic acids, and polyacetylenes. The presence of various flavones and flavonoids contributes to the plant's significant antioxidant properties. Additionally, the specific concentration of coumarins can influence its biological activity and potential medicinal applications. Phenolic acids within the plant provide further protection against oxidative stress at a cellular level. Finally, the inclusion of polyacetylenes adds to the unique chemical profile that defines its pharmacological potential.
According to a study published by "Frontiers in plant science", the main active components of Coreopsis tinctoria are flavonoids. A total of 165 flavonoids were identified, which includes 46 flavonoids, 42 flavonols, 22 anthocyanins, 18 chalcones, 12 dihydroflavonols, nine isoflavones, eight dihydroflavonoids, six flavanols, and two tannins. Within the LS and JS groups, thirty-three metabolites were found to be statistically significantly different, consisting of 11 anthocyanins, 11 flavonols, seven flavonoids, two dihydroflavonols, one dihydroflavone, and one chalcone. LS flowers specifically accumulated higher levels of 10 anthocyanins, which were comprised of seven cyanidins and three pelaergonidins. The study also identified 28 structural genes, six key differentially expressed transcription factors, and 17 other regulators related to the synthesis of these compounds in the plant.
The primary medicinal compounds of this plant are shown in the list below.
- flavonoids
- flavones
- kaempferol
- luteolin
- apiigenin
What health conditions is this plant used for?
This plant is used for treating UV-mediated skin damage, photoaging, skin-lightening, diabetes, and dysentery. The extract of Coreopsis tinctoria provides protective benefits against the harmful effects of solar radiation on the epidermis. It contains compounds that help mitigate the visible signs of aging caused by sun exposure and can assist in skin-lightening processes. Beyond dermatological applications, traditional uses include managing blood sugar levels associated with diabetes. Additionally, it has been utilized in various medicinal practices to address intestinal issues like dysentery.
According to a study published by "Antioxidants (Basel, Switzerland)", Coreopsis tinctoria contains the primary bioactive flavonoid okanin which shows promise for addressing skin photoaging. The research investigated the molecular mechanism of Coreopsis tinctoria in skin photoaging through network pharmacology, in vivo, and in vitro studies. In vitro experiments demonstrated that okanin alleviated oxidative damage, apoptosis, and mitochondrial dysfunction in HaCaT cells exposed to UVA radiation. In vivo results showed that okanin enhanced the expression of SIRT3 and FOXO3a in dorsal skin to mitigate UV-mediated skin damage. These findings suggest the potential for using okanin in skin care products to promote skin repair following UVA exposure by regulating the SIRT3/FOXO3a/PINK1/Parkin signaling pathway.
The main health conditions this plant is used for are shown in the list below.
- diabetes mellitus
- dysentery
- photoaging
- skin-lightening
- oxidative stress
What are the herbal preparations of this plant?
This plant is used to create medicinal preparations including an 80 % ethanol extract, a flavonoid-rich AcOEt fraction, flower tea, an infusion, and a tincture. The 80 % ethanol extract and the specific AcOEt fraction are primarily utilized in laboratory settings to isolate potent bioactive compounds. For traditional therapeutic applications, the dried flowers are often steeped to produce a mild flower tea or a more concentrated infusion. A tincture made from the plant provides a concentrated liquid form suitable for standardized dosing. These various methods allow for the extraction of different chemical constituents depending on the intended medicinal use.
According to a study published by "Journal of ethnopharmacology", Coreopsis tinctoria flowering tops infusion is traditionally used in Portugal for treating the symptoms of diabetes. The antihyperglycemic activity was revealed when Coreopsis tinctoria was administered for 3 weeks to a STZ-induced glucose intolerance model in the rat. Coreopsis tinctoria flowering tops extracts were tested at concentrations of 25-100 μg/mL, while the pure compounds marein and flavanomarein were tested at 200-400 μM. These Coreopsis tinctoria flowering tops extracts and pure compounds did not present any cytotoxicity and increased cell viability in a dose dependent manner when cells were challenged with tBHP at 400 μM for 2 h. Furthermore, Coreopsis tinctoria flowering tops extracts, as well as marein and flavanomarein, significantly inhibit apoptosis.
The main herbal preparations of this plant are shown in the list below.
- 80 % ethanol extract
- Coreopsis tinctoria flavonoid-rich AcOEt fraction
- Flower Tea
- infusion
- tincture
What side effects this plant can have?
This plant can cause significant metabolic changes by influencing fasting blood glucose levels and the secretion of insulin. Research suggests that Coreopsis tinctoria may exert a hypoglycemic effect, which could potentially lead to unintentional hyperglycemia if blood sugar regulation is disrupted. These fluctuations are often tied to how the plant interacts with hormonal regulators like leptin. Such impacts on metabolic signaling pathways mean that consuming the plant might alter how the body manages energy and glucose. Consequently, individuals must be cautious of these physiological shifts when monitoring their systemic health.
According to a study published by "Journal of diabetes research", Coreopsis tinctoria flower extracts were tested on C57BL/6 mice fed a high-fat diet mixed with 0.4% (w/w) water and ethanol extracts for 8 weeks. These extracts blocked the increase of fasting blood glucose, serum triglyceride (TG), insulin, leptin, and liver lipid levels. The study found that the extracts inhibited α-glycosidase activity and increased oxidant activity in vitro. These findings suggest that Coreopsis tinctoria flower extracts may ameliorate hyperglycemia and insulin resistance induced by a high-fat diet. Consequently, the plant could serve as a potential source of drugs for the treatment of diabetics.
The main side effects this plant can have are shown in the list below.
- hyperglycemia
- hypoglycemic effect
- fasting blood glucose
- insulin
- leptin
What herbs are paired with Coreopsis tinctoria?
This plant pairs effectively with lavender, chamomile, and calendula to create balanced herbal blends for topical salves or soothing teas.
Its bright, sunny character complements the calming notes of lavender while adding a subtle earthy undertone. When used in floral mixtures, the delicate texture of Coreopsis tinctoria enhances the visual and aromatic appeal of chamomile infusions. Gardeners often plant it alongside these companions to support pollinators and create a cohesive aesthetic in herb gardens.
These combinations work well because they share similar light-loving growth requirements and flowering seasons.