Echinacea

Echinacea purpurea

Family: Asteraceae Part used: Aerial parts (flowers, leaves, stems)

Key Compounds

• Alkamides (alkylamides)
• Cichoric acid
• Echinacoside
• Caffeic acid
• Arabinogalactans
• Germacrene D
• Chlorogenic acid

Traditional Use

• Great Plains Native American medicine — used by at least 14 tribes including Lakota, Cheyenne, Comanche, for toothache, burns, and other conditions
• 19th century American Eclectic physicians — most widely prescribed herb in Eclectic medicine
• German phytomedicine from the 1930s — Madaus company imported seeds and built the modern commercial market
• Global supplement market — one of the top-selling herbal supplements worldwide since the 1980s

In 1930, a German pharmaceutical company called Madaus sent an order to the United States for Echinacea angustifolia seeds — the species with the strongest traditional reputation, the highest alkamide content, the one Native American healers had used for centuries. They almost certainly received E. purpurea instead.

Nobody noticed for decades. The industry that grew from those seeds became the foundation of the global echinacea market. E. purpurea is now the dominant commercial species. Most published research is on E. purpurea. The original Native American material — E. angustifolia root — remains the specialist’s choice, which is a polite way of saying almost nobody sells it.

A paperwork error built a global industry.

Meet the plant

Echinacea purpurea is the coneflower that millions of people grow in their gardens without knowing they are looking at a supplement. It reaches 120 cm, with large daisy-like flowers whose petals droop slightly downward and a central cone that is prominent, spiny, and orange-brown. The genus name comes from echinos — Greek for hedgehog — because of that cone. This is accurate. Brush against one and you will agree immediately.

The plants are coarse throughout. Bristly stems, rough leaves, nothing soft or aromatic. These are Great Plains plants — built for wind and frost and dry clay soil and conditions that would finish a lavender in about a week. They did not come here to be decorative. Being decorative is something that happened to them later.

Used by 14 nations, nearly forgotten, then revived by Germany — who got the wrong species

Echinacea was used medicinally by at least 14 different Native American nations — Lakota, Cheyenne, Comanche, Crow, Omaha, Pawnee, Dakota, and others — across thousands of miles of the same landscape. They were not comparing notes. They had found the same plant independently and reached the same conclusion about it. Fourteen separate assessments, all in agreement.

German-American herbalist John Meyer began selling “Meyer’s Blood Purifier” in the 1870s, claiming the recipe came from Native Americans. Pharmaceutical company Lloyd Brothers commercialised it. By the late 19th century, Eclectic physicians — an American movement that integrated botanical and conventional medicine — had made echinacea their most prescribed herb.

Then penicillin arrived. And sulphonamides. And streptomycin. These did things echinacea could not do, which is most things. Eclectic medicine declined and dissolved into conventional practice. Echinacea very nearly vanished from North American medical use entirely.

Germany saved it. The Madaus company — the one that ordered the wrong seeds — developed commercial cultivation, standardised extracts, and published research. By the 1980s, echinacea was the best-selling herbal supplement in Germany. By the early 2000s, it was one of the top-selling supplements globally, and it had made the journey back to the United States that had originally exported it. Built entirely on E. purpurea, the accidental species, the one nobody ordered.

E. angustifolia — the one they were trying to grow — has not commented.

The chemistry

The most immediately noticeable thing about quality echinacea root is the tingling. Put a piece of genuine E. angustifolia root in your mouth and within thirty seconds you will feel a strong, spreading numbness across your tongue. This is the alkamides — compounds that activate nerve receptors in the mouth. No tingling is a bad sign. This is a quality test that traditional users understood centuries before chemistry could explain why it worked.

The three commercially used species have different chemistries. E. purpurea aerial parts are rich in polysaccharides and cichoric acid. E. angustifolia root has the highest alkamide content. E. pallida root is mainly echinacoside. Selling them interchangeably — which most products do — ignores these differences. The industry has decided this is fine.

What people actually do with it

Echinacea is primarily sold as a tincture or capsule. The tincture — especially E. angustifolia root — gives the immediate tingling that tells you the alkamides are present. Here is a practical test: put a few drops on your tongue before swallowing. The tingling should be immediate and strong. No tingling means either the wrong species, poor-quality material, or insufficient alkamide content. This is one of the few quality checks you can run without laboratory equipment.

Tea is a poor delivery method. Alkamides and polysaccharides are both extracted inefficiently by hot water compared to ethanol. If you are making echinacea tea, you are getting considerably less of what matters. This is not a secret. The tea market has made its peace with it.

In Japan, the dominant form is capsules from US supplement brands sold online. Seasonal sales peak sharply in October–November as Japanese consumers begin thinking about winter. It is firmly in the seasonal health preparation category alongside vitamin C and zinc. The timing is reliable enough to plan inventory around.

One thing worth knowing: the ornamental coneflower (E. purpurea, ムラサキバレンギク) is widely grown in Japanese gardens as a summer-flowering perennial. Most of the people growing it have no idea it is the same plant as the supplement on the health food store shelf. A considerable number of Japanese people therefore grow echinacea in their garden, buy echinacea capsules in October, and never connect the two. The plant is not going to tell them.

Could you grow this yourself?

E. purpurea is forgiving. Poor soil, some drought once established, Japanese winters — it manages all of these without drama. Full sun to partial shade. It is already sold in Japanese garden centres as an ornamental, which gives you a sense of how little it demands.

E. angustifolia is harder — a prairie plant that prefers well-drained, poor soil and grows slowly. It takes 3–4 years to produce root worth harvesting. It is not in a hurry. It did not ask to be commercially relevant.

Neither species spreads aggressively. Echinacea stays where you put it and slowly expands into clumps over years.

Echinacea (エキナセア) in Japan

Japan has no traditional use of echinacea. It arrived as a supplement import in the late 1990s as Western natural health culture grew, and has stayed there — a small, consistent market with a sharp seasonal spike every autumn.

エキナセア is sold alongside vitamin C and zinc as part of the “winter health preparation” category. US supplement brands dominate: NOW Foods, Nature’s Way, Swanson, and similar brands are widely available on Amazon Japan and through iHerb Japan delivery. Health food stores and organic supermarkets carry it. Standard pharmacies and convenience stores generally do not.

What is more culturally visible is the garden flower. ムラサキバレンギク appears in Japanese garden magazines, is stocked in garden centres nationally, and is a reliable summer-flowering perennial. The connection between the garden flower and the October supplement purchase is largely invisible. Nobody has introduced them.

Things you’re probably wondering

What is echinacea and where does it come from? Echinacea is a genus of flowering plants native to the Great Plains of North America. Three species are used medicinally: E. purpurea (the most common commercial form), E. angustifolia (historically most prized), and E. pallida. It was used extensively by Native American tribes long before European settlement and became a mainstream commercial herbal supplement through German phytomedicine research in the 20th century.

Why does echinacea root cause a tingling sensation? The tingling comes from alkamides (alkylamides), a class of compounds that activate nerve receptors in the mouth and tongue. Alkamides are particularly concentrated in E. angustifolia root. If you chew genuine high-quality echinacea root, the tingling is strong, immediate, and unmistakable. No tingling or a very faint sensation suggests low-quality or mislabelled material.

What is the difference between echinacea species? E. purpurea aerial parts are rich in polysaccharides and cichoric acid. E. angustifolia root has the highest alkamide content and was the traditional Native American material. E. pallida root contains mainly echinacoside with fewer alkamides. Most commercial products use E. purpurea because it’s easier to cultivate, but the three species have meaningfully different chemistry.

Where can I buy echinacea in Japan? Echinacea (エキナセア) is sold in natural food stores, supplement shops, and widely on Amazon Japan and iHerb Japan. US brands including NOW Foods, Nature’s Way, and Swanson are commonly available. Sales peak sharply in October–November as customers prepare for the winter season. It is not typically sold in standard convenience stores or pharmacies.

Is echinacea in Kampo Japanese medicine? No. Kampo (Japanese traditional herbal medicine) is based on Chinese and Korean botanical traditions. Echinacea is a North American plant that was not part of East Asian traditional medicine. In Japan, echinacea is an imported Western supplement, not a traditional medicine.

Botanical details

The full compound list

See Also

• Elderberry — another North American/European plant popular in the Japanese supplement market
• Rosehip — often sold alongside echinacea in seasonal winter health product ranges
• Astragalus — another popular botanical supplement for the autumn/winter season

References

• Bauer, R. & Wagner, H. (1991). Echinacea species as potential immunostimulatory drugs. Economic and Medicinal Plant Research, 5, 253–321.
• Linde, K. et al. (2006). Echinacea for preventing and treating the common cold. Cochrane Database of Systematic Reviews, 2006(1).
• European Medicines Agency (2015). Assessment report on Echinacea purpurea (L.) Moench herba recens. EMA/HMPC/557979/2013.
• Foster, S. (1991). Echinacea: Nature’s Immune Enhancer. Healing Arts Press.
• Kindscher, K. (1992). Medicinal Wild Plants of the Prairie. University Press of Kansas.