Amaranthus viridis

What's the taxonomical classification of Amaranthus viridis?

Amaranthus viridis belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida, it is further categorized into the subclass Magnoliidae. Its taxonomic hierarchy continues through the order Caryophyllales and the family Amaranthaceae, eventually reaching the genus Amaranthus. Finally, it is identified by its specific epithet, making the complete scientific name Amaranthus viridis.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Caryophyllales
Family Amaranthaceae
Genus Amaranthus
Species viridis
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Amaranthus viridis has an erect, herbaceous stem that typically reaches heights of 30 to 100 centimeters and features branching patterns with simple or slightly lobed leaves. The leaves are generally ovate or lanceolate in shape, possessing entire margins and a bright green color. Small, inconspicuous flowers are arranged in dense, terminal panicles that can appear greenish or reddish depending on the variety. These flowering structures often consist of numerous tiny, bisexual flowers packed closely together. The plant typically develops a taproot system that provides stability and nutrient absorption.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to tropical regions of the Americas, specifically spanning from the southern United States through Central America and into much of South America. Due to its resilient nature, it has naturalized in various tropical and subtropical zones across Africa, Asia, and Oceania. It frequently colonizes disturbed habitats, such as roadsides, agricultural fields, and waste areas, throughout these global regions. The species thrives in warm climates where consistent moisture and sunlight are available. Its wide distribution is largely attributed to its ability to adapt to diverse environmental conditions and human-disturbed landscapes.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant grows best in well-drained, fertile soils with a pH between 5.5 and 7.0 and requires full sunlight for optimal development.

It is an annual species that thrives in warm climates and can be sown directly into the garden once the soil has warmed sufficiently. Regular watering is essential during the early stages of growth to ensure a strong root system establishes itself. Because it is a fast-growing weed in many regions, cultivation often requires consistent weeding to prevent it from outcompeting other crops.

Once mature, the plant produces small green flowers that signal it is ready for harvest or seed collection.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant, known as Amaranthus viridis, provides medicinal benefits through the use of its leaves, shoots, and essential oil. The leaves are frequently utilized in traditional medicine to treat various inflammatory conditions and digestive issues. Similarly, the succulent shoots are consumed or applied to assist in cooling the body and managing fevers. The extracted essential oil contains bioactive compounds that offer potent antimicrobial and antioxidant properties. Together, these different components make the plant a versatile resource in herbal pharmacology.

According to a study published by "Scientific reports", the leaves of the weed species Amaranthus viridis contain remarkable protein, dietary fiber, carbohydrates, Ca, K, Mg, P, S, Fe, Mn, Cu, Zn, Na, Mo, B, chlorophylls, β-cyanins, β-xanthins, betalains, β-carotene, vitamin C, TPC, TFC, and TAC (DPPH and ABTS+). The A. viridis genotype WAV7 specifically had the highest nutrients, pigments, vitamins, phenolics, flavonoids, and antioxidant. These pigments, β-carotene, vitamin C, phenolics, and flavonoids possess strong antioxidant activity and play a vital role in the antioxidant activity of the genotypes. These weed species serve as an excellent source of phenolics, flavonoids, and antioxidants that have many pharmacological and medicinal effects. They can detoxify ROS and offer prospects for feeding the antioxidant-deficient community to attain nutritional and antioxidant sufficiency.

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

  • leaves
  • shoots
  • essential oil
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, known as green amaranth, has been utilized in traditional medicinal systems such as Ayurveda for its diverse therapeutic properties. In Ayurvedic practice, various parts of the plant are employed to balance bodily energies and address specific ailments. Historical usage often involves using the leaves and seeds to manage digestive issues or to reduce inflammation. Many cultures have also relied on its nutritional density to supplement diets during periods of food scarcity. These long-standing traditions highlight its historical importance as both a functional food and a natural remedy.

According to a study published by "Indian journal of pharmacology", Amaranthus viridis is widely distributed all over the world and grows under a wide range of climatic conditions. This plant has been utilized as a medicinal herb in traditional Ayurvedic medicine as antipyretic agents. It is also used for the treatment of inflammation, ulcer, diabetic, asthma and hyperlipidemia. The study prepared 4 different extracts of Amaranthus viridis using aqueous, methanol, chloroform, and hexane. The methanolic extract revealed an IC50 of 47.23 ± 0.66 μg/mL for DPPH radical scavenging activity and an IC50 of 64.33 ± 2.01 μg/mL for NO radical scavenging activity. Other measured values included an IC50 of 33.21 ± 3.3 μg/mL for H2O2 radical scavenging, 47.61 ± 1.31 μg/mL for ABTS radical scavenging, 32.1 ± 1.11 μg/mL for metal chelating activity, and 112 ± 1.21 μg/mL for lipid peroxidation inhibiting activity.

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

  • Ayurveda
Evidence Level: ★★★☆☆

What are the pharmacological activities of Amaranthus viridis?

This plant has significant pharmacological activities including anti-inflammatory, antihyperglycemic, antioxidant, antipyretic, and antiviral properties. The antioxidant components help neutralize free radicals to prevent cellular damage throughout the body. Its anti-inflammatory and antipyretic actions allow it to reduce swelling and lower elevated body temperatures effectively. Additionally, the plant demonstrates antihyperglycemic effects that assist in managing blood sugar levels. Research also suggests its potential antiviral capabilities in combating various infectious agents.

According to a study published by "Indian journal of pharmacology", Amaranthus viridis is used in traditional Ayurvedic medicine as antipyretic agents and for the treatment of inflammation, ulcer, diabetic, asthma and hyperlipidemia. The methanolic extract (ME) of the plant demonstrated several antioxidant activities, including a DPPH radical scavenging activity with an IC50 of 47.23 ± 0.66 μg/mL. Other measured activities for the ME included NO radical scavenging at an IC50 of 64.33 ± 2.01 μg/mL, H2O2 radical scavenging at an IC50 of 33.21 ± 3.3 μg/mL, and ABTS radical scavenging at an IC50 of 47.61 ± 1.31 μg/mL. Additionally, the extract showed metal chelating activity with an IC50 of 32.1 ± 1.11 μg/mL and lipid peroxidation inhibiting activity with an IC50 of 112 ± 1.21 μg/mL. The study also evaluated the antityrosinase and antigenotoxicity properties of the plant.

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

  • anti-inflammatory
  • antihyperglycemic
  • antioxidant
  • antipyretic
  • antiviral
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains medicinal compounds including amaranthin, flavonoids, kaempferol, polyphenol, and beta-carotene. These diverse phytochemicals contribute to the plant's significant antioxidant and anti-inflammatory properties. Among these constituents, the flavonoid kaempferol plays a crucial role in protecting cells against oxidative stress. The presence of polyphenols and amaranthin further enhances the nutritional profile and therapeutic potential of the species. Additionally, beta-carotene provides essential vitamin A precursors that support vision and immune function.

According to a study published by "Bioscience, biotechnology, and biochemistry", the leaves of Amaranthus viridis contain an antiviral protein named amaranthin. This protein has an estimated molecular mass of about 30 kDa as determined by SDS-PAGE. Through isoelectric focusing analysis, the pI of amaranthin was measured as 9.8. The protein's cytotoxicity was evaluated using an in vitro translation inhibition assay, resulting in an IC50 of 25 pM. Additionally, the study confirmed the depurination activity of this compound against animal rRNA.

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

  • amaranthin
  • betalains
  • flavonoids
  • kaempferol
  • polyphenols
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for managing asthma, fever, inflammation, oxidative stress, and ulcers. Its bioactive compounds work to reduce systemic inflammation and combat oxidative stress within the body's cells. The plant's properties also assist in soothing the digestive tract to alleviate the pain associated with an ulcer. Additionally, its medicinal qualities help regulate body temperature to treat a fever. These diverse therapeutic applications make the species a significant resource in traditional medicine.

According to a study published by "Indian journal of pharmacology", Amaranthus viridis has been utilized in traditional Ayurvedic medicine as antipyretic agents. This plant is also used for the treatment of inflammation, ulcer, diabetic, asthma and hyperlipidemia. The methanolic extract of Amaranthus viridis showed a DPPH radical scavenging activity with an IC50 of 47.23 ± 0.66 μg/mL. It also demonstrated NO radical scavenging activity with an IC50 of 64.33 ± 2.01 μg/mL and hydrogen peroxide radical scavenging activity with an IC50 of 33.21 ± 3.3 μg/mL. Additionally, the extract exhibited ABTS radical scavenging activity at an IC50 of 47.61 ± 1.31 μg/mL and metal chelating activity at an IC50 of 32.1 ± 1.11 μg/mL. Finally, the lipid peroxidation inhibiting activity was measured at an IC50 of 112 ± 1.21 μg/mL.

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

  • Cardiovascular diseases
  • diabetic
  • fever
  • hyperlipidemia
  • ulcer
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is used to create medicinal herbal preparations such as essential oil and aqueous extract to treat various ailments. The essential oil is often extracted through steam distillation to capture the plant's potent volatile compounds for topical applications. An aqueous extract is produced by boiling the plant parts in water to create a decoction or infusion used for internal consumption. These preparations are valued in traditional medicine for their potential anti-inflammatory and antimicrobial properties. Practitioners utilize these different forms depending on the specific therapeutic goal of the treatment.

According to a study published by "Chemistry & biodiversity", the essential oil of Amaranthus viridis contains 50 identified components, which are mainly terpenes at 94.79%. The primary compounds within this oil are phytol at 22.41%, trans-chrysanthenyl acetate at 17.73%, cedr-8(15)-en-9-ol at 11.74%, and torreyol at 8.75%. Molecular docking showed that phytol demonstrated strong binding affinities at GS and AHAS with ΔG values of -5.65 and -8.06 kcal/mol, respectively. These findings suggest that Amaranthus viridis essential oil has the possibility of being used as a bioherbicide.

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

  • Essential oil
  • aqueous extract
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can cause kidney stones because it contains high levels of oxalates that may crystallize in the renal system. Excessive consumption of Amaranthus viridis is also linked to various gastrointestinal issues. Individuals may experience nausea or general stomach upset after eating the plant. Furthermore, it can lead to diarrhea in sensitive people. These side effects typically occur when the plant is consumed in large quantities without proper preparation.

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

  • Kidney stones (due to oxalates)
  • Nausea
  • Stomach upset
  • Diarrhea
Evidence Level: ★☆☆☆☆

What herbs are paired with Amaranthus viridis?

This plant, Amaranthus viridis, pairs effectively with culinary and medicinal herbs such as garlic, onion, ginger, and turmeric to enhance its nutritional profile.

When used in savory dishes, garlic and onions complement the slightly earthy and mild flavor of the greens. Adding ginger or turmeric can introduce warming properties that balance the plant's mineral-rich composition. These combinations are frequently used in traditional cooking to improve digestion and flavor depth.

Selecting these specific aromatics ensures that the leafy vegetable's subtle taste is both elevated and well-rounded.

Evidence Level: ★☆☆☆☆