Echinacea is a common ingredient in over-the-counter medications available in pharmacies and health and nutrition stores. It is widely believed to prevent and treat colds and the flu.
A genus of flowering plants in the daisy family is called echinacea. Its nine wild species thrive in open forested areas and damp to dry plains in eastern and central North America.
The genus include the narrow-leaved purple coneflower, pale purple coneflower, and purple coneflower. They all open their huge pink petals in the early to late summer.
More house owners are including different types of the coneflower in their gardens as a result of its acceptance as a herbal supplement. According to the National Garden Bureau, echinacea has consistently ranked in the “top five” perennials for retail sales.
According to a garden bureau document, “Echinacea was picked as the plant of the year for 2014 because it’s such an American mainstay.”
However, the joy may not last long for at least one species of wild coneflower, the narrow-leaved purple coneflower (Echinacea angustifolia).
According to Ruth Shaw, an evolutionary scientist at the University of Minnesota, the narrow-leaved purple coneflower, a native of the tallgrass prairie and North American Great Plains, “was previously plentiful and had a vast distribution.”
“But many plains were turned into agricultural areas after European settlers began to arrive around 1870. Coneflowers and other prairie wildflowers were trampled under.
According to research by Shaw and his colleague Stuart Wagenius of the Chicago Botanic Garden, the coneflower is now only found in grassy areas that are still vestiges of the prairie.
The researchers are analyzing the genetic makeup of narrow-leaved purple coneflowers in a Douglas County, Minnesota grassland as part of a Long-Term Research in Environmental Biology (LTREB) grant from the National Science Foundation (NSF).
They are learning how such dispersed plant communities adjust to environmental change in the process.
These tiny patches of prairie are intruded upon by railroad tracks and row crops. According to Shaw, native prairies are teeming with vegetation and pollinators, but our 27 research locations have reduced to being little more than coneflower islands.
Many of us utilize an extract of echinacea for our health, says Sam Scheiner, program director for the NSF’s Division of Environmental Biology, which is funding the research. We can also learn more about the health of entire ecosystems by studying live echinacea plants.
According to Scheiner, “human activities have reduced wildlands and fragmented the environment, with uncertain repercussions for the local plants and animals. We can manage natural places more effectively if we comprehend how Echinacea is responding.
According to Wagenius, tallgrass prairie is one of the world’s most endangered environments. “We intend to immediately gain as much knowledge as we can about it. We might be able to save at least some of these prairie patches with some work.
When tallgrass prairie covered the Midwest more than a century ago, it provided a haven for numerous coneflowers and the bees that pollinated them. According to Wagenius, a bee might have been able to travel through a 100-mile-long field of coneflowers. “Would it be able to accomplish that now? No way.”
According to him, pollination of coneflowers in tallgrass prairies like those in Minnesota is far from optimal. Bees can only transport pollen a short distance. Bees must fly farther and farther to reach coneflowers as there are less and fewer of them in a given location. The given pollen is frequently not grade-A.
Coneflowers eventually develop a genetic bond with one another, becoming floral cousins and siblings where areas of tallgrass prairie are small enough. When a bee transports pollen between coneflowers that are related, the receiving plant could reject the pollen. After then, no new coneflowers emerge, and no new seeds are generated.
Inbreeding takes place when a plant that is genetically related accepts the pollen. The resulting weakling coneflowers frequently die.
According to Wagenius, “we’re acquiring a fresh understanding of why populations of these plants are becoming so limited through our research of coneflower genetics.
Prairie coneflowers are not just threatened by a lack of high-quality pollen. The aphids come next.
Aphids are the scourge of every home gardener, and they are just as bad for wild plants. Shaw and Wagenius found that destroying coneflower habitats can make Echinacea more vulnerable to pests.
They did research on an aphid that prefers to eat the narrow-leaved purple coneflower.
Coneflowers received bad news from the findings. The genetic “fitness” of these plants may be diminished by aphids’ predilection for inbred coneflowers, claims Shaw.
Coneflowers require more than just a large environment. They also require open fires. According to Shaw, fire is essential to the wellbeing of prairie ecosystems.
Lightning-caused fires cause grassland plants to blossom, which may increase genetic variety in the areas where the fires have burned.
However, most of the fires have been put out by roads and cornfields, according to Wagenius, and there isn’t much prairie left to burn.
The effects of fire on tallgrass prairie are the subject of scientific research, and environmental managers are urged to restore controlled fires to the prairie.
Otherwise, purple coneflowers with thin leaves and the tallgrass grasslands they represent may soon go extinct.
Where is echinacea available?
The United States and Canada are home to the blooming plant echinacea. Additionally known as coneflower. It belongs to the family of plants known as daisies. For many years, echinacea has been used as a herbal treatment. The viruses that cause colds, sore throats, and the flu are now frequently prevented or treated with it.
Most drug stores and health food stores carry echinacea products. It is available as teas, pills, liquid extracts, capsules, or dried plants. It is one of the most widely used herbs in the country.
Path to improved health
Echinacea is frequently used as a dietary supplement to treat infections like the common cold. They contend that it strengthens the immune system. This improves the body’s ability to combat the infection. As a result, the illness might not persist as long. When feeling well, some people use it to avoid getting sick.
Consult your primary care physician before using echinacea to treat a cold or the flu. Make sure to conduct your study as well. Before being sold, dietary supplements do not require FDA approval. The components in some supplements may not be what is listed on the label. Look for a business that quality tests their goods. You will then be certain that you are acting appropriately.
Pay close attention to the package label. Echinacea is available in a wide range of doses and strengths. Additionally, it may be combined with other nutrients. Observe the instructions on the packaging. Take only the prescribed amount. It can be hazardous to take more than is advised.
The majority of companies advise against eating echinacea on an empty stomach. They advise drinking a lot of water or eating before taking it. Echinacea shouldn’t be taken for more than a few weeks. Long-term safety has not been sufficiently investigated.
Before taking echinacea or any supplements, consult your doctor. If it will conflict with any other medications you take, he or she can let you know. They can also suggest the appropriate dosage for you.
Keep all herbal products out of young children’s sight and reach. To prevent them from losing their potency, keep them in a cool, dry area. Avoid keeping them in restrooms, which tend to get warm and muggy.
Does it work?
On the impact of echinacea on the common cold, numerous studies have been conducted. Researchers have not yet discovered concrete proof of its efficacy. They don’t think that taking it as soon as a cold hits will make it go away faster. Taking it when you are healthy may somewhat lower your risk of contracting a cold.
What are the side effects?
Minor adverse effects are possible with echinacea. These symptoms can include nausea, dizziness, and a queasy stomach. Allergic reactions such as redness, swelling, and breathing difficulties are considered serious adverse effects. It may exacerbate asthmatic symptoms. Inform your doctor as soon as possible of any negative effects you have.
Daisy family plants can cause allergy reactions in some people. These could include chrysanthemums, marigolds, ragweed, daisies, or other flowers. This could increase your chance of experiencing an allergic reaction to echinacea.
Where can I find wild echinacea?
Echinacea needs full to partial sun to grow well. At least four hours of sunlight every day are required for plants. Since the plants are native to woodland borders, they will flourish in locations with morning shade and afternoon light, or the opposite.
Echinacea may thrive in rocky, poor soil, but not in soggy, waterlogged soil. Compost should be used as a mulch around newly planted plants.
Coneflowers grow in clumps and require space. One plant will typically grow bigger, but it won’t spread through roots or rhizomes and take over the entire garden. Check the mature size stated in the plant description to help you choose the appropriate spacing because the final size of the plant clump depends on the cultivar. Leave 18 inches between plants if it is anticipated that they will spread to be 18 inches broad. Echinacea must be planted where you want them since they have deep taproots. They dislike being relocated after being established.
Echinacea plants should be planted in well-drained soil in full to part sun in the spring or the fall. Echinacea is also simple to cultivate from seed, but it needs a period of stratification—a cold, damp time—in order to germinate. In the fall, scatter seeds widely (after hard frost in the north and prior to winter rains elsewhere), lightly covering them to deter birds from eating them. In the spring, seeds will begin to sprout. One benefit of starting with transplants is that the majority of plants will bloom during the second year.
What is the source of echinacea extract?
Echinacea preparations are frequently used for respiratory tract infections such colds, coughs, and bronchitis due to its immunomodulatory qualities. Echinacea genus and family members, such as E. purpurea, E. angustifolia, and E. pallida, are used to make echinacea extracts. Most of the compounds in these extracts are lipophilic alkylamides (alkamides), which have been demonstrated to have anti-inflammatory effects [102] and may also influence cytochrome P450 activity, which may impact medication metabolism.
The co-administration of echinacea dramatically decreased the clearance of caffeine (a CYP1A2 substrate) and tolbutamide, according to a small clinical investigation involving 12 healthy volunteers. Midazolam (a CYP3A substrate) oral clearance was unaffected by echinacea, however after intravenous administration, midazolam’s area under the concentration-time curve shrank [103]. After taking echinacea for 28 days, 13 participants in another clinical research found that the amounts of midazolam they were given orally were significantly decreased [104]. Echinacea and CYP1A2, CYP2D6, CYP2E1, or CYP3A4 activity did not, however, interact in a clinical research that was identical to that one [105]. Echinacea does not impact the CYP2D6 activity in healthy volunteers, according to a follow-up investigation [106]. To further compound the confusion, a recent randomized controlled experiment found that treatment of echinacea to healthy male volunteers did not impair hemostasis while drastically lowering levels of S-warfarin, which has five times the potency of R-warfarin [107]. Echinacea extracts reduced the activity of OATP-B [108] and P-gp [109] in epithelial cells in separate in vitro investigations, suggesting that additional research should also concentrate on interactions related to drug absorption.
The contradictory findings obtained by several clinical investigations unmistakably point to the necessity for additional research into the potential effects of echinacea extracts on medication pharmacokinetics. Given the dearth of case studies demonstrating the interactions between echinacea and other medications, it may be reasonable to assert that grave health risks are improbable. But given the significant variations in phenolic content found in commercial echinacea preparations [110] and the paucity of clinical studies concentrating on drug transporters, caution is advised. This is because conflicting results have been found regarding interactions with cytochrome P450 activity.
Is echinacea a US native plant?
The daisy or sunflower family (Asteraceae) includes the echinacea, sometimes known as coneflower, which is almost entirely indigenous to the eastern and central United States. Native Americans employed the narrow-leaf coneflower, Echinacea angustifolia, and purple coneflower, Echinacea purpurea, as traditional medicines. The tribes chewed the roots to heal toothaches and throat infections, applied the plants topically to treat wounds, burns, and insect bites, and consumed the plants internally to treat pain, coughing, stomach cramps, and snake bites. Early settlers crossing the plains on their way west were quick to recognize this species’ curative qualities. Around 1880, Meyers Blood Purifier, the first echinacea product, hit the market as an elixir for rheumatism, neuralgia, and rattlesnake bites.
The first seeds of E. purpurea were sent to the Bishop of London in the middle of the 1680s so that they might be planted at the Oxford Botanic Garden. John Banister, an English clergyman and naturalist, is credited for introducing the plant to Britain. Purple coneflower was well-liked in European gardens by the late 1800s as both an attractive flower and a medicinal herb. One of the most widely used herbal supplements in the United States is echinacea.
Echinacea has experienced a resurgence in popularity due to the rising emphasis on using native plants in backyard gardens to create healthy ecosystems. The creation of indigenous cultivars has contributed to its popularity in part. These cultivars have made Echinacea available in brilliant hues, compact shapes, with protracted bloom times, and stiffer stems. This sturdy, lovely Great Plains resident has experienced a proliferation of cultivars.
Echinacea flowers are inflorescences, which are clusters of 200–300 tiny fertile disk florets on the cone, like all plants in the Asteraceae family. The name Echinacea, which refers to the sharp spines that protrude from the disk florets, is derived from the Greek word echinos, which means hedgehog. A ring of sterile ray florets, or what we call petals, surrounds the disk florets. Pollination takes place in the disk florets because the ray florets’ vivid colors draw pollinators there.
The majority of echinacea species have an annual stem that emerges from an underground taproot or rhizome each season with a basal rosette of foliage. The fibrous root system of purple coneflower (E. purpurea) makes it simpler to transplant it in the garden. It has large, smooth leaves that are typically serrated. The leaves of all other Echinacea species are thin, hairy, and typically whole (margins without teeth or serration).
The number of species within the genus have been identified in a variety of ways over time. Despite some ongoing discrepancies among sources, the majority agree on a list of nine species and four subspecies (McGregor, 1968). In the USDA Hardiness Zones 3-9, the species can be found growing naturally in a variety of environments, including grasslands, open woodlands, and savannas, frequently on dry, rocky, or sandy soils.
The nine species’ average heights range from 1-3′, with E. purpurea reaching a height of 4′ and E. laevigata reaching a height of 5′. The three species, E. angustifolia, E. pallida, and E. purpurea, are all used medicinally. The purple coneflower species, E. purpurea, is the one that is most widely available and planted in backyard gardens.
Smooth purple coneflower E. laevigata The Piedmont regions are home to endangered species that are federally listed. When land was turned into pine plantations, a large portion of this plant’s habitat was destroyed.
Pale purple coneflower, E. pallida The species is classified as threatened in Tennessee and Wisconsin, primarily as a result of habitat loss and excessive root harvesting for herbal medicine.
Coneflower in yellow, E. paradoxa. Conical, dark-brown disk is at the center. Ray blooms range from light purple to yellow (E. paradoxa var. paradoxa, found in the Ozarks) (E. paradoxa var. neglecta, found only in Arbunkle Mtn. area of Oklahoma).