Yarrow: Herb of the Year 2024 

Janice Cox 

A closeup of the white flowers of Achillea millefoliumYarrow is a popular perennial herb that can be found in many gardens, mine included. It is known as a powerful “healing” herb. It’s also a fantastic landscape plant, culinary ingredient, and can be a key ingredient in anti-aging and healing body care products. 

I have my yarrow planted along my driveway. I call it my “protector” plant as it keeps deer and rabbits out of my yard. They do not like the scent or bitter tasting leaves. It also helps as a ground cover, keeping weeds out and my yard in bloom. Yarrow comes in a wide range of colors from creamy white to dark red. It will also attract birds and pollinators to your yard, helping all of your plants bloom and produce more. 

Yarrow has antibiotic and anti-inflammatory properties. It is cooling, soothing, and healing when used in skin care products. A simple tea or infusion of fresh flowers and leaves makes a calming product for troubled skin, insect bites, or a bad sunburn. Simply apply to your skin using a spray bottle or cotton pad. Yarrow in the bath is especially refreshing and will also boost your circulation. The most popular use of yarrow is as a key ingredient in healing skin balms and lotions. Yarrow leaves are powerful and have been used to stop bleeding in cuts and scrapes and also help the healing process. Legend has it that Achilles, the great warrior, used yarrow leaves to heal his soldiers’ wounds after battle. This may also be the reason the plant genus is called “Achillea.” 

Sepia toned illustration on black background of Achilles tending the wounds of PatroclusYarrow can also be used in the kitchen when making bitters, teas, salads, and salts. You can use just about everything from oils, butters, honey, and vinegar in which to infuse the bitter peppery leaves, and adding a bit of citrus or sugar will help enhance yarrow’s strong flavor. You only need a few leaves, as the taste can be overpowering in dishes. Also, when infusing in oils always use dried yarrow so you do not introduce any extra moisture, which can spoil your product. 

Yarrow is an especially beautiful dried flower and dries very quickly and easily. Pick bunches not larger than a quarter in diameter and let them air dry in vases or hanging from drying racks. If you are seed saving you may want to dry your bunches in paper sacks to help with collection and to protect them from dust or bugs. 

Here are a few recipes for you to try at home: 

Pink and white inflorescences of Achillea 'Colorado Mix'Yarrow Cucumber Cleanser 
Cucumber is naturally cleansing and calming to your skin. When you combine it with fresh yarrow flowers you have a mild cleanser that can be used in place of soap for all skin types.  

1 whole cucumber 
1 Tablespoon fresh yarrow flowers and leaves or 1/2 Tablespoon dried 
1/2 cup water 
1 teaspoon honey 

Yield: 4 ounces 

In a blender or food processor combine all ingredients and process on high until you have a well-blended mixture. To use: Massage into your skin and let sit for a few seconds up to a minute. Then rinse with warm water followed by a cool water rinse and pat your skin dry. Store any leftover cleanser in the refrigerator. 

Yarrow Bath Salts 
Yarrow makes a relaxing bath. Fill a muslin tea bag with fresh flower heads and some leaves and toss in your tub as it fills, or wrap inside a cotton wash cloth and use as a “scrub” sack in the shower. Combined with popular bath minerals it makes for a soothing soak that will also boost your circulation. 

1 Tablespoon fresh yarrow leaves and flowers 
1/2 cup Epsom salts 
1/2 cup baking soda 
1/4 cup sea salt 

Yield: 10 ounces 

Mix together all ingredients and spoon into a cotton sack or onto a cotton wash cloth and secure with a rubber band. To use: Toss in a warm tub. Soak for 20 minutes. 

Achillea Terracotta 2 by Chrissy MooreYarrow Flower Salt 
Making herbal salt is a simple process with benefits. Yarrow supports digestion and also helps reduce bloating. You can create a simple salt that can be used in cooking. Just use care as a little bit will go a long way. Yarrow adds a sweet, bitter flavor to the salt. 

1 Tablespoon sea salt 
1/2 Tablespoon fresh yarrow flowers 

Grind together the yarrow and salt until fine and spread on a clean tray or cookie sheet to dry.  You may also use dried yarrow and skip the drying step. To use: Use as a finishing salt on your dishes. 

Medicinal Disclaimer: It is the policy of The Herb Society of America, Inc. not to advise or recommend herbs for medicinal or health use. This information is intended for educational purposes only and should not be considered as a recommendation or an endorsement of any particular medical or health treatment. Please consult a health care provider before pursuing any herbal treatments.

Photo Credits: 1) Achillea millefolium flowers (Erin Holden); 2) Achilles tends the wounds of Patroclus (Bibi Saint-Pol); 3) Achillea ‘Colorado Mix’ (Erin Holden); 4) Achillea ‘Terracotta’ (Chrissy Moore)


Janice Cox is a garden writer and natural beauty expert. She is the author of Beautiful Flowers, Beautiful Lavender, Beautiful Luffa, Natural Beauty at Home, Natural Beauty from the Garden, Natural Beauty for All Seasons and the newly released Natural Beauty at Home Handbook.  She was the beauty editor for Herb Quarterly Magazine for more than twenty years.  She is the education chair for The Herb Society of America and a member of the International Herb Association. She makes her home in southern Oregon. 

HSA Webinar: What are Cocktail Bitters?

By Ian Blessing, of All The Bitter

(Editor’s note: The original, unabridged version of this article can be found on All The Bitter’s blog.)

Bitters being dashed onto a cocktail in a copper cup with a mint sprigThe best way to think about cocktail bitters might be to call them the spice rack of the bar. Typically used in “dashes”, or the equivalent of a pinch of seasoning, bitters have the ability to highlight or enhance flavor in the same way that salt or pepper might. Bitters help to balance and add another dimension to cocktails that are often dominated by sweet or sour flavors. They can even tie different elements of a cocktail together, and add complexity to drinks that might be lacking. For something that comes in such a small bottle, bitters pack a big punch! But what the heck are they? What are bitters?

WHAT ARE BITTERS?
Bitters are crafted by infusing a neutral alcohol base (or vegetable glycerin) with a carefully selected blend of aromatic spices, herbs, fruits, roots, and other botanical ingredients. These flavorful components lend bitters their distinct taste profiles and contribute to their versatile applications in cocktails. While recipes vary, common ingredients found in bitters include cinchona bark, which imparts a bitter and earthy note, gentian root known for its intense bitterness, warm spices like cinnamon and clove, and the zesty essence of orange peel. These ingredients are meticulously combined and macerated to extract their flavors, resulting in a complex, intense extract. Bitters typically have an alcohol content ranging from 35 to 45% ABV (alcohol by volume), but alcohol-free bitters are also available.

HOW BITTERS ARE MADE
Besides sourcing all of the esoteric ingredients – and for that we recommend Mountain Rose Herbs – making bitters is actually a pretty easy process. If you’re interested in trying it out at home, there are plenty of easy-to-follow recipes on the web. The basic process to make alcoholic bitters goes like this:

A peach colored cocktail with a lime wedge and a rosemary sprig1. Toss your ingredients in a glass container with a lid, like a mason jar. Add your high-proof spirit, seal the container, and shake it daily for 2-3 weeks.
2. Strain the liquid through cheesecloth into another container and seal it. Place the leftover botanicals in a small saucepot with water and simmer lightly for 5-10 minutes. Transfer this water, and the botanicals, into a clean jar, seal it, and let it infuse for a few days in the refrigerator.
3. Using a cheesecloth, again strain the water from the solid ingredients. Combine the infused water and the spirit – this brings the ABV of the bitters down to 30-45% – and optionally add sweetener like simple syrup or honey to balance the intensely bitter flavors.

Want to make non-alcoholic bitters? The process is even easier. It starts the same way, by placing your botanicals into a clean container. Add a mixture of vegetable glycerin and water, ideally in a ratio of 75% glycerin to 25% water for shelf stability, filling the container nearly to the top (making sure there’s enough room for the botanicals to float around). Seal the container and shake it daily for 6-8 weeks.

HOW ARE BITTERS USED?
While bitters might seem like the exclusive purview of trained bartenders, they’re actually pretty easy to use, especially when you think of them as the spice rack of the bar. A few dashes add intrigue and depth to a drink and do an excellent job of balancing both sweet and sour flavors, which cocktails tend to have in spades.

Consider the five basic tastes: sweet, sour, salty, bitter, and umami. A drink, or a dish, might feel incomplete if it only contains one or two of those taste sensations. Now, we don’t need to pack all 5 tastes into everything we eat and drink, but if you can incorporate a wider range of those flavors into your cocktail, you’re going to have a more satisfying experience. Let’s look at a simple whisky sour as an example. In its most basic form, the drink contains only three ingredients: whisky, lemon, and sugar. Adding a few dashes of Aromatic bitters isn’t going to change the flavor profile dramatically – it’ll still be the same whisky sour – but it’ll be more complete. Include a few drops of saline solution and now we’re really firing on all cylinders!

A collection of small bottles of bitters on a bar

ARE BITTERS ALCOHOLIC?
Bitters are alcoholic, generally containing between 35-45% alcohol by volume. However, because bitters are typically used in such small amounts, once they’re diluted into an otherwise non-alcoholic drink like a glass of club soda, they’re often considered to be non-alcoholic (like vanilla extract in baking). This can be a slippery slope for folks in recovery, though. A few dashes of bitters in a non-alc cocktail certainly won’t get you drunk, but one dash too many can easily put your drink over the 0.5% ABV threshold that defines “non-alcoholic” beverages, and more importantly, above the comfort level for many people who identify as sober or alcohol-free. There’s a great post at Alcademics that breaks down the exact ABV of drinks made with bitters.

A yellow drink with a cherry and orange peel set on a bar with a bottle of bitters and one of liqourARE THERE NON-ALCOHOLIC BITTERS?
Absolutely! Non-alcoholic bitters offer a delightful alternative for those seeking the flavors and complexity of traditional bitters without the alcohol content. One popular option is glycerin-based bitters. All The Bitter, for instance, utilizes a base of vegetable glycerin, water, a touch of apple cider vinegar, and a complex blend of botanicals to create a rich and flavorful experience. Using ingredients like gentian root, warm spices, fruit, citrus peels, and flowers, these bitters deliver enhanced flavors to cocktails, providing a similar effect as traditional bitters but without compromising on taste or alcohol content. With zero alcohol, non-alcoholic bitters offer a great solution for those looking to enjoy flavorful and well-balanced drinks without the presence of alcohol.

THE LAST SIP
Dispensed with a flourish from tiny bottles in dimly lit bars, cocktail bitters might seem mysterious, but at their core they’re really just the spice rack of the drink world. A dash here and a dash there can add depth and complexity to everything from a well-crafted cocktail to a glass of sparkling water. Drinks like the Old Fashioned or Manhattan wouldn’t be the same without them, and in fact, the word cocktail as we know it might not even exist. While their rich medicinal history does contain some snake oil salesmanship, bitters absolutely are beneficial for gut health, and continue to be taken today for their functional properties.

To learn more about the wonderful world of bitters, join Erin Holden, herbalist and gardener for the National Herb Garden in Washington, D.C., on Thursday, December 14 at 1pm Eastern for the webinar: Herbal Bitters: A Spring Tonic for Any Time of Year! Our webinars are free to The Herb Society of America members and $7.50 for guests. Become a member today, and enjoy all of our webinars for free along with access to the webinar library with over fifty program titles. To register, visit https://www.herbsociety.org/hsa-learn/herb-education/hsa-webinars/

Medicinal Disclaimer: It is the policy of The Herb Society of America, Inc. not to advise or recommend herbs for medicinal or health use. This information is intended for educational purposes only and should not be considered as a recommendation or an endorsement of any particular medical or health treatment. Please consult a health care provider before pursuing any herbal treatments.

Photo Credits: All photos via Unsplash.com, except for photo 3) A variety of bitters (Achim Schleuning)

Well, Well, What Do We Have Here? A Tale of Two Acorus Species

by Erin Holden

Tall, thin green leaves with a whitish-greenish spadixWhile doing research for a presentation on herbal uses of native plants, I decided to look more into a plant I’d learned about in herb school, sweet flag (Acorus calamus). This strongly aromatic aquatic plant has long been my favorite warming digestive bitter for those times when I overindulge in a huge meal (I’m looking at you, Thanksgiving). The flavor is warm, pungent, bitter, and spicy in a black-peppery way – the flavor sort of fills up your mouth and is warm all the way down to your stomach. But as I dug deeper into the research, I discovered I’d been wrong all this time about the origin of the Acorus species I’d been using. It turns out that A. calamus is native to Europe, temperate India, and the Himalayan region, while the native species is A. americanus (also called sweet flag), although the two species look so similar that even some scientists are unsure of which species they’ve studied and reported on. There still isn’t much consensus among taxonomists as to what differentiates these two – some even classify them as the same species (Boufford,1993; eFloras, 2008). Let’s take a deeper look at the similarities and differences between these two plants. 

There are many common names for sweet flag from all over the world (Daglan, 2014), many of which describe either the flavor of the root (like bitter, sweet, pepper) or its watery habitat:

Muskrat_eating_plant Linda Tanner via wikimediaAbenaki: mokwaswaskw (muskrat plant)

Ayurvedic Tradition: vacha 

Cheyenne: wi’ukh is e’evo (bitter medicine) 

Chinese Medicine: shui chang pú (watery flourishing weed)

English: sweet flag, calamus 

Hudson Bay Cree: pow-e-men-arctic (fire or bitter pepper root) 

Penobscot and Nanticoke: muskrat root

Micmac: ig gig’wesukwul (muskrat root)  

Pawnee: kahtsha itu (medicine lying in water) 

Many Native American names connect Acorus with muskrats. According to Sue Thompson’s dissertation on Acorus (as reported by Daglin, 2014): 

There seems to be “a closely linked ecological relationship between Native Americans trapping muskrats and using Acorus, muskrats eating Acorus, and Acorus. Muskrat feeding habits may in part be responsible for the dispersal of Acorus, and Native Americans may have intentionally planted Acorus both for their own medicinal use and to ensure food for the muskrat, which was economically valuable to them (Morgan 1980). Thus, the many Native American names for Acorus, which involve muskrat as a root word, may reflect an important economic and ecological relationship among man, plants, and other wildlife.”

A border planting of tall, thin green Acorus calamus leavesBoth species are perennial, grow in zones 4 to 10, have 1’–3’ tall iris-like leaves, and can spread 1’–2’. They bloom April through June, and like full sun to part shade. The inflorescence is a green spadix with no spathe (a spathe is a hood-like structure, like the white part of a peace lily). Both A. americanus and A. calamus are freshwater aquatic plants that grow in medium to wet soil and can grow in up to nine inches of water. They’re both easily propagated by root/rhizome divisions in the spring. Since they are aquatic plants, they can be used in water gardens, ponds, or rain gardens. They can also grow in regular garden beds as long as they get adequate water, so they’re very versatile if you’re looking for tall, straight leaves (Missouri Botanical Garden, 2022).

Although the two species look very much alike, there are some subtle differences you can use to tell them apart. A. calamus has leaves with one prominent vein and undulate (wavy) margins, does not produce fruit, and will “appear to have a shriveled ovary” in late summer, whereas A. americanus has leaves with two to six veins and smooth margins, produces small green berries, and has swelling ovaries in late summer (Dalgin, 2014).

There are also some unseen differences between the two. It turns out that A. americanus is a fertile diploid species and contains almost no phenylpropanoids, a chemical family whose members play a role in the flavors and aromas of cinnamon, cloves, nutmeg, and sassafras. A. calamus is a (mostly) sterile triploid (there are some populations of a fertile diploid phenotype in Asia that are morphologically distinct from the North American A. americanus). In addition, 13% of its volatile oil fraction is made up of those phenylpropanoids, one of which is β-asarone.

Botanical illustration of Acorus calamusThis chemical distinction is important, because β-asarone has demonstrated procarcinogenic tendencies (meaning it could metabolize into a cancer causing compound), and the FDA has banned the use of “calamus, calamus oil, or extract of oil in food,” although these studies used high levels of isolated β-asarone and not “suggested doses of the whole plant in terms of mg/kg of body weight” that an herbalist would recommend. However, since A. americanus has little to no β-asarone, it’s been suggested that this species is safe to consume (Dalgin, 2014).

Sweet flag is an important plant for many native peoples. One writer said it is “considered so sacred [to the Cheyenne] that only qualified Sundance priests [can] collect it,” and it “may be the most important herb in Penobscot pharmacology” (Dalgin, 2014). 

Historically, the Dakota used a paste on their faces to “instill fearlessness and provide stamina” in battle and chewed the rhizomes to enhance endurance “during the wars of the 20th century” (Dalgin, 2014). 

Other uses for the plant include: colds, flu, and sore throat; as a tonic; for intestinal pain and as a carminative (dispels gas); as a stimulant when tired; toothache; an analgesic for muscle cramps/spasm; and in ceremonial/religious rituals.

Tall, thin leaves of Acorus americanus growing along the bank of a streamColonists also used Acorus, and Eclectic physicians (doctors in the 1800s) incorporated it into their materia medica (list of medicinal substances). Eventually, it made its way into the first edition of the  Dispensatory of the United States in 1833 (Osol et al, 1833), which cataloged drugs used by U.S. pharmacists at the time. These groups used it pretty much the same way that Native Americans use it: as a carminative, for weak digestion and flatulent colic, as a sialagogue (stimulates saliva production) and as “breath perfume,” a warming aromatic bitter, and externally for ulcers that wouldn’t heal (Dalgin, 2014). 

Some modern herbalists who use both species say that, because of its higher volatile oil content, A. calamus targets the gastrointestinal system more specifically, while A. americanus has a “more balanced” action on the whole body—working equally on the gastrointestinal and nervous system, as an expectorant (which helps clear gunk from the lungs), spasmolytic (calms spasms), and antitussive (Daglin, 2014).

Now that I know about A. americanus and its different effects on the body, I’m interested in experimenting with the two species. I’ve also planted it out in the Native American bed in the National Herb Garden. I wonder if we should also invest in a muskrat.

Photo Credits: 1) Acorus calamus inflorescence (E. Holden); 2) Muskrat (Linda Tanner, via Wikimedia ); 3) Acorus sp. used as a mass border planting (KENPEI, via Wikimedia  ); 4) Two prominent veins and smooth leaf margins of A. americanus (E. Holden); 5) The prominent midvein and undulate leaf margins of A. calamus (E. Holden); 6) Botanical illustration of A. calamus (Creative Commons, Rawpixal LTD); 7) Acorus americanus growing along a stream bank (Ryan Hodnett, via Wikimedia)

Medicinal Disclaimer: It is the policy of The Herb Society of America, Inc. not to advise or recommend herbs for medicinal or health use. This information is intended for educational purposes only and should not be considered as a recommendation or an endorsement of any particular medical or health treatment. Please consult a health care provider before pursuing any herbal treatments. 

References 

Boufford, D. E. 1993+. Acorus. In: Flora of North America Editorial Committee, eds. Flora of North America North of Mexico [Online]. 22+ vols. New York and Oxford. Vol. 3. Accessed 10/5/22. Available from http://beta.floranorthamerica.org/Acorus

Dalgin, R. 2014. Acorus calamus and Acorus americanus. Integrative Herbalism: Journal of the Vermont Center for Integrative Herbalism. Summer, 30-78.

eFloras. (Internet). 2008. Acorus calamus. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Accessed 10/5/2022. Available from http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200027130

Lady Bird Johnson Wildflower Center. (Internet). 2015. Acorus americanus (Raf.) Raf. Accessed 1/7/2022. Available from https://www.wildflower.org/plants/result.php?id_plant=ACAM

Missouri Botanical Garden. 2022. Acorus calamus. Accessed 1/7/2022. Available from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=276172

Orsol, A., C. H. LaWall, F. Bache, G. B. Wood, G. E. Farrar, H. C. Wood Jr., and J. P. Remington. The dispensatory of the United States of America. Grigg & Elliot: Wisconsin. Available from https://www.google.com/books/edition/The_Dispensatory_of_the_United_States_of/xikzAQAAMAAJ?hl=en&gbpv=1


Erin is the gardener for the National Herb Garden at the U.S. National Arboretum in Washington, D.C. She is a member of the American Herbalists Guild, United Plant Savers, and a member-at-large of the Herb Society of America.

Nasty Plants and the Reasons to Love Them

by Erin Holden

Scrunched up faces. Tongues sticking out. Sounds of choking and disgust. Unfortunately this is the usual reaction when I’m finally able to coax someone into trying medicinal herbs. When we move past the more pleasant plants like lavender, chamomile, and peppermint and delve into the deeper waters of herbal medicine, not everything is so user-friendly. Many plants taste bitter, smell like old socks, or even feel slimy. But often, it’s these same nasty characteristics that provide the therapeutic benefits we’re looking for. Let’s take a look at a few plants and see what makes them so “nasty” as well as useful.

Valerian (Valeriana officinalis)
Many people may be familiar with the distinctive aroma of valerian root; old socks, wet dog, and horse manure are just a few things to which the odor has been affectionately compared. In fact, the constituent responsible for the smell, valeric acid, is also one of the components that causes swine manure to smell so badly (Chi, Lin, & Leu, 2005). Despite its odiferous qualities, valerian has been used for its sedative effects for over 2000 years. Valerian root is taken to relieve anxiety, promote sleep, and relax gastrointestinal spasms (Braun & Cohen, 2006). Some research shows that another compound, valerenic acid, may mediate anxiety by binding to GABA receptors in the brain, although the exact medicinally active compounds haven’t yet been pinpointed (Benke et al., 2009).  It’s possible that valeric acid also has a role to play, as multiple constituents acting together may account for these effects (Spinella, 2002).

Marshmallow (Althaea officinalis)
marsh-mallow-jcs-althaea-officinalis-54735 from biopix dot comGlycosaminoglycans, the medicinally active polysaccharides found in marshmallow root, have an appropriate abbreviation: GAGs. Mixing the powdered root with water or preparing an infused tea results in a slimy, mucilaginous mess that can be difficult to choke down. But it’s this very sliminess that causes marshmallow to work so well at soothing irritated tissue. Marshmallow is used for coughs, as a urinary demulcent, and for irritated skin. The mucilage forms a bioadhesive layer that acts as a barrier, protecting the tissue and allowing it to heal (Deters et al., 2010). Extracts of the root have also demonstrated antibacterial properties (Lauk, Lo Bue, Milazzo, Rapisarda, & Blandino, 2003; Watt, Christofi, & Young, 2007).

Gentian (Gentiana lutea)
Gentiana_lutea_090705 by Bernd Haynold via wikimedia commonsNo pub or bar would be complete without a bottle of bitters, with Angostura® being among the more popular brands. Although the recipe for Angostura® Bitters is a well-guarded secret, gentian is listed on the label as an ingredient and is likely a major contributor to the bitter flavor. By itself, gentian is considered extremely bitter and has been used as a yardstick when rating the bitterness of other herbs (Olivier & van Wyk, 2013). Bitter compounds in general have been shown to stimulate the secretion of saliva and digestive juices by activating the vagus nerve (Bone, 2003). The active constituents in gentian, gentiopicroside and amarogentin, are no exception.  These molecules account for gentian’s use in improving digestion, increasing appetite, and relieving flatulence (Braun & Cohen, 2006).

Lobelia (Lobelia inflata)
Lobelia_inflata_8820er_1586426759 by Paul Rothrock from SERNEC websiteWhat list of nasty herbs would be complete without pukeweed? This alternate common name for lobelia says it all. The emetic qualities of this plant were made (in)famous by Dr. Samuel Thomson in the 19th century. As a boy, Thomson would cause his friends to vomit by tricking them into eating lobelia leaves. Later in life, he founded the Thomsonian medical movement and employed lobelia and its purging properties as his main treatment (Loyd & Loyd, 1930). This unpleasant effect is attributed to lobeline, an alkaloid found in the above ground parts of the plant (Miller & Ruggiero, 1994). Lobeline is also responsible for lobelia’s therapeutic use as a bronchodilator and muscle relaxant (Hanson, 2005). This herb has been taken to relieve asthma, ease tense skeletal muscles, and calm nervous anxiety (Snow, 2009).

As you can see, even though some plants might make you want to “lose your lunch” or plug your nose and run for the hills, we should embrace them as they might be the very thing needed to help us feel better. Perhaps this perspective will help make ingesting nasty herbs a bit easier to swallow.

Photo Credits: 1) Valerian (Morton Arboretum, via Sernecportal.org); 2) Marshmallow (Biopix.com); 3) Gentian (Bernd Haynold, via Wikimedia Commons); Lobelia (Paul Rothrock, via Sernecportal.org)

Medicinal Disclaimer: It is the policy of The Herb Society of America, Inc. not to advise or recommend herbs for medicinal or health use. This information is intended for educational purposes only and should not be considered as a recommendation or an endorsement of any particular medical or health treatment. Please consult a health care provider before pursuing any herbal treatments. 

 References

Benke, D., Barberis, A., Kopp, S., Altmann, K.H., Schubiger, M., Vogt, K.E., Rudolph, U., & Möler, H. (2009). GABA A receptors as in vivo substrate for the anxiolytic action of valerenic acid, a major constituent of valerian root extracts. Neuropharmacology, 56(1), 174-181. 

Bone, K. (2003). A clinical guide to blending liquid herbs. St. Louis: Churchill Livingston.

Braun, L. & Cohen, M. (2006). Herbs and natural supplements (2nd ed.). Sydney, Australia: Churchill Livingstone.

Chi, F.H., Lin, P.H., & Leu, M.H. (2005). Quick determination of malodor-causing fatty acids in manure by capillary electrophoresis. Chemosphere, 60(9), 1262-1269.

Deters, A., Zippel, J., Hellenbrand, N., Pappai, D., Possemeyer, C., & Hensel, A. (2010). Aqueous extracts and polysaccharides from Marshmallow roots (Althea officinalis L.): Cellular internalisation and stimulation of cell physiology of human epithelial cells in vitro. Journal of Ethnopharmacology, 127(1), 62-69.

Hanson, Bryan A. (2005). Understanding medicinal plants, their chemistry and therapeutic action. New York: The Haworth Herbal Press.

Lauk, L., Lo Bue, A.M., Milazzo, I., Rapisarda, A., & Blandino, G. (2003). Antibacterial activity of medicinal plant extracts against periodontopathic bacteria. Phytotherapy research, 17(6), 599-604.

Loyd, J.U. & Loyd, C.G. (1930). Drugs and medicines of North America, 1884-1887. Cincinnati, Ohio.

Miller, A.D. & Ruggiero, D.A. (1994). Emetic reflex arc revealed by expression of the immediate-early gene c-fos in the cat. The Journal of Neuroscience, 14(2), 871-888.

Olivier, D.K. & van Wyk, B.-E. (2013) Bitterness values for traditional tonic plants of southern Africa. Journal of Ethnopharmacology, 147(3), 676-679.

Snow, J. (2009). Materia medica: Lobelia inflata. Personal Collection of J. Snow, Maryland University of Integrative Health, Laurel, MD.

Spinella, M. (2002). The importance of pharmacological synergy in psychoactive herbal medicines. Alternative Medicine Review, 7(2), 130-137

 Watt, K., Christofi, N., & Young, R. (2007). The detection of antibacterial actions of whole herb tinctures using luminescent Escherichia coli. Phytotherapy Research, 21(12), 1193-1199.

 

 

Christmas Herbs of Trinidad, Part I

By Amy Forsberg

Trinidad_tobago-esI was visiting my mother just a few weeks before Christmas in 2017. She had recently moved to a wonderful small family-run assisted living home. The owner, Ann Abdul, asked me if I’d like to taste some “sorrel drink” she had made for the holiday season. I had no idea what that was. It looked Christmassy–a brilliant ruby red. I took a sip, and the most delicious taste filled my mouth. It was a rich, complex, and unfamiliar burst of flavors. But it tasted like Christmas, too—it was sweet, and I thought I could detect cinnamon, cloves, and vanilla. But it also tasted a bit like lemonade with a pronounced citrusy tartness. I loved it, and I had to know more! 

Ann and her family are from Trinidad, and over the next two years, I learned so much from her about Trinidad cuisine and culture. The island nation Trinidad & Tobago has a complex history of colonization, slavery, indentured labor, and immigration from all around the world, which has led to a cuisine and a culture that blends Indian, African, Creole, Amerindian, British, French, Spanish, Chinese, and Middle Eastern ingredients and traditions. It is one of the most diverse cuisines in the world and is full of bold flavors. 

There are certain recipes–food and drink–that are essential for Christmas in Trinidad. Ann says it simply isn’t Christmas without them. Maybe you will want to explore some of them and add them into your own celebrations. First, let’s look at what drinks are important to Christmas in Trinidad.

20171009_171414It turned out that “sorrel” is a name for the calyces of Hibiscus sabdariffa, a plant commonly known as roselle, as well as the beverage that is made from them. If you have ever tasted Celestial Seasonings Red Zinger tea, then you have tasted sorrel. (This sorrel is not related to the leaves of Rumex acetosa, also known as sorrel, which is used as a salad green and fresh herb.) In the Caribbean, the fleshy calyces are used fresh or dried to make the beverage. They are boiled along with various whole spices, then strained, sweetened, and cooled. It is served cold, with or without rum. The exact recipe varies from family to family, but the spices used would typically include cinnamon stick, bay leaf, cloves, allspice, ginger, star anise, and orange peel. Ann’s recipe calls for cinnamon, bay leaf, clove, and vanilla. In Trinidad, many people grow their own Hibiscus sabdariffa so they can harvest the fresh, but highly perishable, calyces, which ripen around Christmas-time, for making their sorrel. (Fresh sorrel may be hard to locate in some sections of the United States, but packets of dried sorrel are easier to find in the International food sections of stores or through Caribbean/International markets online.) For additional information on Hibiscus sabdariffa, check out the blog’s previous post on roselle.

Angostura bittersAnother essential Trinidadian Christmas drink is one more familiar to most Americans. Ponche de crème is their flavorful take on eggnog. Served straight or spiked with rum, this delicious drink must contain a special Trinidad ingredient: Angostura Bitters. You may be familiar with Angostura Bitters as a cocktail ingredient. It has a history that goes back to the early 19th century and is worthy of a post all its own! It is a concentrated alcoholic herbal concoction said to contain as many as 40 botanical ingredients, the exact recipe of which is rumored to be known by only five living people! It started out as a medicine and made its way into flavoring food and drink. Although the recipe is unknown, it is widely believed to include orange peel, vanilla, cinnamon, anise seeds, juniper berries, cocoa nibs, and the intensely bitter Gentiana lutea, a European alpine wildflower with a long history in medicine and brewing. Just a dash of Angostura Bitters is enough to help flavor most recipes. And in Trinidad, according to Ann, a dash is added to almost everything, particularly fruit juices. 

IMG_20201027_074741_444Lastly, the third beverage essential to Christmas in Trinidad is also enjoyed year-round: ginger beer. Ginger beer is a strongly flavored version of ginger ale that is non-alcoholic. The rhizome of Zingiber officinalis contains volatile oils, such as zingerone and gingerols, that give ginger its characteristic “zing.” Most families in Trinidad, as well as the rest of the Caribbean, make their ginger beer at home from fresh ginger rhizomes, and the resulting ginger beer often has a very strong punch of ginger flavor. It contains other spices such as cinnamon and clove. It is made very strong, and it can be diluted with water or club soda to suit your taste.

Next week: Trinidad Christmas foods!

All recipes from Ann Abdul and/or adapted from “The Multi-Cultural Cuisine of Trinidad & Tobago & the Caribbean” (which is the 2002 updated version of “Naparima Girls’ High School Diamond Jubilee 1912-1987, Trinidad & Tobago Recipes”. These are the quintessential cookbooks on Trinidadian cuisine, found in almost every home, according to Ann.)

Ann’s Sorrel Drink

  • Dried sorrel1 package dried sorrel (Angel brand easily available online or in Caribbean market)
  • 10 cloves
  • 6 bay leaves
  • 2 sticks of cinnamon
  • 8 cups of water

Boil until tender, then cool. 

When cool add:

  • 1-2 cups sugar or to taste (sorrel is extremely tart)
  • ½ cup rum (optional)
  • 1 TBSP vanilla extract

Store in refrigerator and enjoy throughout the season!

Ponche De Crème

  • 6 eggs
  • Peel of one lime
  • 3  15 oz. cans evaporated milk
  • 1½  14 oz. cans sweetened condensed milk (or to taste)
  • 1 tsp Angostura bitters
  • ½ tsp grated nutmeg
  • ½ cup rum or more to taste

Directions:

  1. Beat eggs and lime peel until light and fluffy.
  2. Add evaporated milk.
  3. Sweeten to taste with condensed milk.
  4. Add bitters, nutmeg and rum according to taste.
  5. Remove lime peel.
  6. Serve with crushed ice.

Notes:

You can substitute 1 ½ cups pureed steamed pumpkin for eggs. Consuming raw eggs carries risk of salmonella bacteria illness. Using pasteurized eggs reduces this risk.

Ginger Beer

  • 1 lb. fresh ginger root
  • 8 cups water
  • juice and peel of one lime
  • 4 cups granulated sugar (or to taste)
  • 1 cinnamon stick
  • 4-6 cloves

Directions:

  1. Wash, peel, and grate ginger root.
  2. Place in a large bottle with 8 cups of water and juice and peel of one lime.
  3. Leave in the sun for one day. Next day, drain and sweeten with sugar.
  4. Pour into clean bottles and place in the refrigerator. Allow to settle for 2 days.

If too strong, dilute with club soda or water to taste.

Photo credits: 1) Map of Trinidad and Tobago (Wikimedia Commons); 2) Hibiscus sabdariffa (sorrel/roselle) calyces (Michael Rayburn, Rayburn Farms); 3) Angostura Bitters (angosturabitters.com); 4) Zingiber officinale (ginger) rhizomes (Michael Rayburn, Rayburn Farms); 5) Dried sorrel calyces (angelbrand.com).


Amy Forsberg is a horticulturist who was the 2000-2001 National Herb Garden intern. She has gardened at the U.S. Botanic Garden (2002-2005) and the U.S. National Arboretum (2006-2018). She has long been fascinated by the history of herbs and spices and their role in creating culture and cuisines.

A Bit about Bitters, Part II

By Erin Holden

Welcome to Part II on herbal bitters! For a little background info on what bitters are, why we taste them, and where we taste them, see Part I posted on 2/17/20. It’s a worthwhile read, but not necessary if you just want to jump in with this article.

Historical Uses: Egyptian medical papyri from as far back as 2650 B.C. mention bitter herbs, such as frankincense, myrrh, aloe, and wormwood, being macerated in alcohol. Knowing now what we do about bitters, it’s reasonable to think some of these concoctions were used for stomach ailments that call for bitters today. Fast forwarding a bit, we find the origins of the famous Swedish Bitters in the mid 1700s. Considered a universal medicine, it contained, among other herbs, aloe, saffron, rhubarb, gentian, and myrrh. Another common ingredient was theriac, a “composite” medicine consisting of up to sixty-four vegetable, animal, and mineral parts. Several of these – caraway seed, ginger, angelica root, and fennel to name a few – are still used in contemporary bitters formulae.

In Cocktails: I’d be remiss if I didn’t mention bitters as they are used in cocktails. Many countries, such as Italy, Germany, Spain, and France, have “the tradition of consuming an Range_of_Cocktailbittersherbal, bittersweet liqueur as an aperitif or digestif”, to either stimulate or aid digestion before or after a meal (Parsons, 2011). However, during the 1850s in the United States, the temperance movement, along with high taxes on potable alcohol (alcohol consumed as a beverage), forced these types of drinks to fall out of favor, and led to the increased popularity of stomach bitters, a nonpotable alcohol (so not subject to the same taxes). Unfortunately, many unscrupulous companies began making outlandish claims for their products, forcing the federal government to step in and lay down restrictions. This, along with Prohibition in 1919, knocked bitters off the U.S. map for a good long while.

DandelionIn Food: Many countries that traditionally partake of alcoholic bitters also have a history of harvesting and consuming bitter spring greens. Plants such as burdock, dandelion, and cresses pop up early in the spring, and their bitter leaves not only helped stimulate digestive systems turned sluggish from a winter of consuming preserved foods, but provided much needed vitamins and minerals. Additionally, many bitter plants are anthelmintic, meaning they help kill intestinal worms. It gives new meaning to the term “spring cleaning!”

Bitters Today: Building on a long history of use, herbalists today suggest bitters for a variety of digestive disturbances – from dispelling gas, increasing bile production and secretion, to supporting healthy blood sugar regulation. As stated in Part I, though, bitters are produced by plants for defense, and as such can be pretty powerful. Always consult a trained herbalist first if you’re considering taking bitters.

Regarding their use in cocktails, herbal bitters have taken off in recent years. I remember when Angostura Bitters were all I could find, but within just the past few years, my local liquor store has started offering many more brands and flavors. Trendy bars have also taken to concocting their own special house bitters, and books are being written on the subject.

Bitter Herbs: The list of bitter herbs is a long one, so I just wanted to highlight a few. Wormwood (Artemisia absinthium) is most famous for its role in the liqueur Absinthe; itsWormwood_shoots by Eddideigel common name comes from its use in killing intestinal parasites. Cinchona (Cinchona spp.) is the botanical source of quinine, the widely used antimalarial agent. Gentian (Gentiana lutea), the archetypal bitter, is a main ingredient in most commercially available cocktail bitters, including Angostura Bitters. Some plants that don’t have an overt bitter flavor, such as fennel (Foeniculum vulgare) and ginger (Zingiber officinale), are also sometimes classified as “bitters” by herbalists due to their therapeutic action on the digestive system.

Thanks for sticking with me through this rather long “intro” into herbal bitters. If this topic tickles your fancy, I highly recommend the following resources: two books on bitter foods and cocktail bitters, with recipes, and a fascinating paper on the history of Swedish Bitters. The book by B.T. Parsons is available for checkout to members from the HSA library for the cost of shipping.

Ahnfelt, N. & Fors, H. 2016. Making early modern medicine: Reproducing Swedish Bitters. From the Library to the Laboratory and Back Again: Experiment as a Tool for the History of Science; 63(2): 162-183.

McLagan, Jennifer. 2014. Bitter: A taste of the world’s most dangerous flavor, with recipes. New York: Ten Speed Press.

Parsons, B.T. 2011. Bitters: A spirited history of a classic cure-all. Berkeley: Ten Speed Press.

Medicinal Disclaimer: It is the policy of The Herb Society of America, Inc. not to advise or recommend herbs for medicinal or health use. This information is intended for educational purposes only and should not be considered as a recommendation or an endorsement of any particular medical or health treatment. Please consult a health care provider before pursuing any herbal treatments.


Erin Holden is the gardener for the National Bonsai and Penjing Museum at the U.S. National Arboretum in Washington, D.C. She is a member of the American Herbalists Guild, United Plant Savers, and a member-at-large of The Herb Society of America.

 

 

A Bit about Bitters, Part I

By Erin Holden

From grapefruit to coffee to arugula – lots of plants are bitter. And while some people will cross the street to avoid a bitter veggie, others can’t seem to get enough. Why is this? Join me on a two part journey as I delve into the science and use of one of nature’s most divisive flavors.

The What: How do you define a bitter? If you’re a chemist, they’re structurally unrelated compounds that, well, taste bitter. If you’re an herbalist, bitters are plants that are used for their therapeutic effect on the digestive system. And if you’re a bartender, bitters are aromatic flavoring agents made from various plant parts to enhance the taste of a drink. Based on these definitions it’s easy to see that bitters fulfill many roles in our lives. But why can we taste bitter to begin with?

The Why:Rat poison The main reason plants create bitter compounds boils down to one simple thing: defense. Since plants can’t run and hide from predators, they devised their own chemical defense system – the first instance of chemical warfare, you could say. When an insect bites into, say, a broccoli plant, it gets a mouthful of glucosinolates, sulfur containing compounds that are toxic to insects and rodents, and gross to some people. Plants see us as essentially giant rodents that want to eat them, and create a wide variety of nasty tasting compounds to deter us from doing so. In turn, since some of these compounds not only taste bad but can also kill humans, we evolved taste receptors to detect them, therefore potentially skirting death.

The Where: So, where exactly do we have these taste receptors? I’m sure many of you learned the “flavor map” of the tongue in school, like I did, which outlines where we can detect sweet, sour, salty, and bitter (poor umami got left out on that one). Well I’m here to tell you, that map is bunk! It’s based on the misinterpretation of a graph from 1942, that plotted out areas of relative sensitivity of the tongue to the various flavors. Later on, low areas of sensitivity were mistakenly interpreted as having no sensitivity, leading to the incorrect map we’re all familiar with today. All flavors can be detected across the whole tongue, the back of the roof of the mouth, and the epiglottis. Other research has suggested that while areas of the tongue do show varying levels of sensitivity to the five known flavors, these differences are not significant (Wanjek, 2006).

Taste_buds

Photo Credit: MesserWoland

Having taste receptors on the tongue is no surprise, but you may be surprised to learn bitter receptors have also been found in the brains, airways, gastrointestinal tract, testes, and pancreas of various mammals (including humans). This leads back to WHY? The prevailing hypotheses boil down to the same thing – protection. If our airways are full of bacteria that are producing bitter compounds, our cough response is triggered, so we cough up and expel the offending invader. If an ingested bitter toxin makes its way to our guts, it’ll essentially trip the “abandon ship” alarm, causing our body to purge itself of the potential poison in unpleasant ways.

I’ll stop there with that thought. Keep an eye out for the follow-up, where I’ll talk about the historical uses of bitters, their role in herbal medicine, and mention some specific bitter herbs.

Wanjek, C. 2006. The tongue map: Tasteless myth debunked. Live Science. From Livescience.com. Accessed January 31, 2019. Available from https://www.livescience.com/7113-tongue-map-tasteless-myth-debunked.html on 1/31/2019

Medicinal Disclaimer: It is the policy of The Herb Society of America, Inc. not to advise or recommend herbs for medicinal or health use. This information is intended for educational purposes only and should not be considered as a recommendation or an endorsement of any particular medical or health treatment. Please consult a health care provider before pursuing any herbal treatments.


Erin Holden is the gardener for the National Bonsai and Penjing Museum at the U.S. National Arboretum in Washington, D.C. She is a member of the American Herbalists Guild, United Plant Savers, and a member-at-large of the Herb Society of America.