The American Botanical Council’s flagship magazine noted internationally for quality, reliability, and beauty in reporting on medicinal plants
AUSTIN, Texas (August 8, 2018) — August 2018 marks the 35th anniversary of HerbalGram, the quarterly journal of the American Botanical Council (ABC). Since its first issue in 1983, HerbalGram has transformed from a black-and-white newsletter to a full-color, 82-page journal with the visual appeal of beautiful botanical photography and intellectual draw of peer-reviewed articles. Though HerbalGram has evolved significantly, its editorial mission to serve as a reliable herbal education resource has remained the same.
In the summer of 1983, ABC Founder and Executive Director Mark Blumenthal produced the first issue of HerbalGram, which was then titled “Herb News” with the subtitle “Herbalgram.” Blumenthal, who also was running his former herb distribution business, Sweethardt Herbs, spent many of his nights and weekends collecting, writing, and editing articles for the newsletter. It was this focus on disseminating trustworthy and timely herbal information that would eventually lead Blumenthal to found ABC in 1988.
Originally published with financial support from the newly formed American Herbal Products Association (AHPA), of which Blumenthal was a founding board member, the first HerbalGram was an eight-page, black-and-white newsletter stapled at the spine. It consisted of “herb blurbs” on herbal miscellanea, a “media watch” section with herb-related news articles, a handful of paragraph-long “Rob’s Research Reviews” authored by then-Associate Editor Robert McCaleb (who, at the time, was also head of research at Celestial Seasonings), listings of herbal information resources and schools, and more. The editorial staff included just Blumenthal and McCaleb, who also co-founded the Herb Research Foundation (HRF) together.
For the second issue, Blumenthal enlisted two additional part-time assistant editors. The publication now featured the title “Herbalgram” in larger font. This issue took on a more defined format, with organized sections on industry news, conferences/meetings, HRF news, and “potpourri” — a catch-all section featuring various news items of possible interest to the growing herbal industry and community.
In the following years, HerbalGram transformed into a modern force in the botanical medicine community. In 1988, HerbalGram issue 18/19 was the first color edition with a cover illustration of St. John’s wort (Hypericum perforatum, Hypericaceae). This 48-page double issue also was the first published under the auspices of both HRF and ABC, which Blumenthal founded with the late ethnobotanist James A. Duke, PhD, and the late Professor Norman Farnsworth, PhD, in order to help transition the publication from newsletter to journal. In 1992, issue 28 was the first full-glossy, four-color issue, and featured an image of the Ware Collection of Blaschka Glass Models of Plants from the Harvard Museum of Natural History on the cover. The journal increased to its current length of 82 pages in 1999, and, in 2000, issue 50 was the first to be published by ABC alone.
Eighteen years and almost 70 issues later, the editorial staff of HerbalGram has grown to include an art director and three full-time editors, in addition to Blumenthal, who serves as editor-in-chief, along with many other employees at ABC who serve in a variety of other important roles. The journal features articles both from in-house writers and botanical experts from around the world, and all are peer-reviewed by members of ABC’s distinguished advisory board or other professionals with relevant expertise. HerbalGramreaches thousands of readers in more than 81 countries who represent a range of diverse professions, from research scientists (e.g., pharmacognosists, ethnobotanists, etc.) and health practitioners (e.g., herbalists, naturopathic physicians, pharmacists, conventional physicians, etc.) to industry members, government regulators, and many others.
HerbalGram has been a leader in presenting extensive literature reviews on specific herbs in an effort to help establish a scientific basis for their potential health benefits. In some cases, these reviews can also help clarify erroneous or inappropriate claims about the uses of the herbs.
“HerbalGram has served as the go-to source for detailed perspectives on developing herb-related topics for 35 years,” said Steven Foster, an herbalist, photographer, author, and ABC Board of Trustees member. “The publication is at the forefront of covering topics such as herb conservation and the effect of climate change on herb crops, clear assessments of regulatory and market developments, as well as emerging science.”
Foster added: “The depth of coverage, detailed quality of presentation, rigorous peer-review process, meticulous editorial attention, aesthetic beauty, and broad appeal [of HerbalGram] combine to reach a standard of lasting excellence that few science-based periodicals achieve.”
Loren Israelsen, president of the United Natural Products Alliance, praised HerbalGram’s diverse content. “When my HerbalGram arrives in the mail, I know I will begin another journey into the wonders of the herbal kingdom,” he said. “While I no longer save other magazines, I treasure and hold tight to my copies of HerbalGram. I, along with many others, salute ABC and HerbalGram for its 35 years of service to the advancement of consumer, industry, and professional education, high level of professionalism, and documenting the rich history of our remarkable community.”
In November 2011, the ABC-AHP-NCNPR Botanical Adulterants Prevention Program (BAPP) published its first feature-length article — “A Brief History of Adulteration of Herbs, Spices, and Botanical Drugs” — in HerbalGram issue 92. The article, written by Foster, reviewed numerous cases of adulterated, fraudulent foods, spices, and drugs during the past two millennia. HerbalGram also has published extensively peer-reviewed BAPP feature articles on the adulteration of bilberry (Vaccinium myrtillus, Ericaceae) extract, skullcap (Scutellaria lateriflora, Lamiaceae) herb, so-called “grapefruit seed extract,” and black cohosh (Actaea racemosa, Ranunculaceae) in addition to Foster’s epic 22-page article, titled “Toward an Understanding of Ginseng Adulteration: The Tangled Web of Names, History, Trade, and Perception.”
In 2012, ABC introduced an online “page-flip” version of HerbalGram that is optimized for viewing on smartphones, tablets, and computers. In 2016, all issues of HerbalGram became available in PDF format, from 1983’s issue 1 through the current issue, thanks to a digitizing project overseen by Art Director Matt Magruder in 2016. Before that, only issues 85 and above were available as PDF files.
HerbalGram is available as a benefit of ABC membership at the Individual level and up. It also is sold in some bookstores and natural food stores.
Native to Argentina, Brazil and Paraguay, Passiflora caerulea, is one of three semi-hardy species of passionflowers, and is widely cultivated as a window box plant or gardens in southern Europe, surviving temperatures of -15°C. It was cultivated in France as early as 1625, and first document in London in 1629. Today it is one of the most widely-grown passionflowers in horticulture, and source of many hybrids. These photos were taken in a garden in Podgorica, Montenegro.
Intent on reaching the swimming hole on a seething July afternoon, my attention was diverted by a loud pop under foot. Relieved by the realization that the object was vegetable rather than animal, the victim plant caught my attention again, this time by the indescribable, intricate beauty of its bloom. I had stepped on a fruit of the passionflower or maypop. Such is the memory of a New England transplant upon first encountering a maypop in the Ozarks. This fast-growing perennial vine is more widely known as passionflower (Passiflora incarnata). In the Southeast it’s also called apricot vine.
Passionflower’s Name
What design of nature or serendipitous evolutionary event could create a flower of such unusual beauty? Such radiance is beyond scientific rationale. Best to describe it in religious terms. The first Europeans to observe the plant did just that. The name is derived from flos passionis, a translation of fior della passione, a popular Italian name which was applied to the plant to signify religious symbolism. The floral structure was seen to symbolize the implements of the crucifixion—the Passion of Christ— his period of suffering following the Last Supper and the Crucifixion. The three spreading styles atop the stigma were thought to represent the three nails by which Christ was attached to the cross. The five hammer-like anthers atop of the stamens exemplify the hammers used to drive the nails, or to others, Christ’s five wounds. Beneath these floral structures is a fringe of colored filaments, known as the corona. It was believed to depict a halo or perhaps the crown of thorns. Beneath it sits the corolla—with ten petals, each representing the ten apostles at the Crucifixion— save Peter and Judas. Some early missionaries envisioned that the bell-shaped, unopened or recently closed flower held these sacred symbols from the view of heathens who had not yet been converted to Christianity. If that’s not enough, the lobed leaves and long green vines further represent the hands and whips of Christ’s prosecutors. And so, both the common and Latin names—passionflower (Passiflora)—speak of these mysteries. Thomas Johnson editor of the 1633 edition of Gerarde’s Herball described these notions for what they were: “The Spanish Friers for some imaginarie resemblances in the floure, first called it Flos Passionis, The Passion floure, and in a counterfeit figure, by adding what was wanting, they made it as it were an Epitome of our Saviors passion. Thus superstitious persons semper sibi somnia fingunt” [always see contrived images]. The species name of passionflower “incarnata” means “made of flesh or flesh-colored.” Maypop, of course, refers to the fruits, the shape and size of a hen’s egg, which open with a resounding pop when squeezed.
Passiflora incarnata, Passionflower, or Maypop. Passionflower is variously wildflower, weed, ornamental perennial, delectable edible, or medicinal herb. The fruits, “maypops”, are edible. The whole above ground plant is considered a mild nerve sedative and a sleep aid. When tension, restlessness and irritability result in difficulty in falling asleep, passionflower is an herbal remedy of choice.
Passionflower Diversity
Depending upon your perspective passionflower is wildflower, weed, ornamental perennial, delectable edible, or medicinal herb. The flowers of one hybrid P. x alatocaerulea (a cultivated hybrid between P. alata and P. caerulea) are used in perfumery. That covers all the bases of the definition of an herb— any plant or plant part used for culinary, fragrant or medicinal purposes. Therefore, it deserves a place in herb gardens. Here we will primarily focus on the common maypop, wild passionflower, or apricot vine (P. incarnata) the only native species that is hardy and can be widely cultivated in much of the U.S.
Yellow Passionflower, Passiflora lutea one of the most diminutive of all passionflowers, with blooms barely reaching 2cm in diameter. It occurs from Pennsylvania to Florida, west to Texas, northward to Illinois.
The passionflower (P. incarnata) is an herbaceous perennial, trailing or climbing, with tendrils. The white to blue purple flowers are up to three inches across. It occurs in waste ground, along fence rows, roadsides, and fields from Pennsylvania to southern Florida, west to east Texas and north to southern Missouri, and Ohio. In the United States we have about 25 native or naturalized species of Passiflora, but only the passionflower and its diminutive relative wild yellow passionflower (P. lutea), with tiny yellow flowers about an inch across, are hardy natives. Wild yellow passionflower is rarely grown in gardens.
The genus Passiflora, with only a handful of temperate species, explodes in diversity in the American tropics with about 500 species. An additional 20 species occur in Indomalaysia and the south Pacific islands. Some have edible fruits. Others do not. About 30 species of passionflower have edible fruits. At least 40 species and numerous cultivated varieties are found in American gardens, primarily in warmer areas.
Passiflora edulis, passion fruit, passionfruit is used as a commercial source of passionfruit beverages in the tropics. Since the fruits have poor keeping qualities they are seldom seen outside of local tropical markets. A folk remedy for insomnia, neuralgia, muscle spasms and epilepsy. Juice considered a digestive aid.
The undisputed edible king of passionflowers is passionfruit or purple granadilla (Passiflora edulis) which is cultivated for its edible fruits and juice. It is native to southern Brazil, Paraguay and northern Argentina. A large passionfruit industry in Brazil grows purple-fruited forms for the fruits, while yellow-fruited cultivated forms are used for juice extraction. Passionfruit is grown commercially in Australia, New Zealand, Hawaii and other tropical regions. It was introduced into Hawaii in the 1880s, where it became a popular home garden flower and fruit on the islands. By the 1930s it had become wild on every island in the archipelago. Commercial cultivation operations are also found in Kenya, South Africa, India, Pacific islands, and other tropical regions where it thrives. According to Arthur O. Tucker passionfruit has proven hardy in protected situations as far north as Ontario. If you do buy seeds or plants of this species and don’t live in a subtropical area, you will probably want to bring it indoors for the winter. The vast majority of scientific references to Passiflora species refer to the passionfruit and its many cultivars and hybrids. Much of the research has focused on attempting to unlock the unusually complex, sweet, delicate-perfume flavor of the fruits.
Other passionflowers are grown as subtropical food plants as well. The tropical American species running pop (P. foetida), now a weed in the old world tropics, is grown for its fruit, as is the banana passionfruit (P. mollissima). Yellow granadilla, or water lemon (P. laurifolia), also known as Jamaica honeysuckle, is a commercial fruit crop. Its name does not derive from any resemblance to honeysuckle (Lonicera species) but from the fact that the fruits are eaten by sucking out the pulp from the rose-scented fruit. Sweet calabash (P. maliformis) is grown to produce grape-flavored juice. Giant granadilla (P. quadrangularis) sports a large fruit about eight inches long which is eaten as a vegetable. Individual fruits of cultivated varieties of giant granadilla may weigh as much as several pounds. When still green the rind is boiled and eaten as a vegetable. If ripe, it is eaten iced (with sugar) or the fruit-wall may be candied. Members of the genus Passiflora hybridize readily and have produced numerous cultivated hybrids, primarily grown in the tropics for fruit production.
Passiflora vitifolia, Grapeleaved Passionflower, Crimson Passionflower is a showy native to Central America. The berry-like fruit is sour, then slowly ripens over a month a flavor likened to sour strawberries.
Other passionflowers such as red-flowered species P. vitifolia which sports crimson red flowers, or blue passionflower (P. caerulea) are grown as ornamentals. They do not produce edible fruits. Some cultivars of the blue passionflower such as ‘Constance Elliot’ which sports white flowers, are reported to be hardy in protected situations as far north as central Delaware. The tender ornamental passionflowers can be grown as annuals, taking cuttings in late summer rooting them before the first frost, or growing them in a large container to winter it over.
Native to Argentina, Brazil and Paraguay, Passiflora caerulea, is one of three semi-hardy species of passionflowers, and is widely cultivated as a window box plant or gardens in southern Europe, surviving temperatures of -15°C. It was cultivated in France as early as 1625, and first documented in London in 1629. Today it is one of the most widely-grown passionflowers in horticulture, and source of many hybrids. These photos were taken in a garden in Podgorica, Montenegro.
Growing Passionflower
Subtropical edible or ornamental passionflowers are primarily relegated to the realm of the specialized collector, or those who have access to a greenhouse. But the passionflower (P. incarnata) can be grown by most herb gardeners. While passionflower is commonly regarded as a southern plant, it will grow as far north as the Boston area, and I suspect, if placed in a well-protected situation and mulched through the winter, it would even survive as a perennial in central Maine. Here in the Arkansas and Missouri Ozarks, the native passionflower withstands temperatures of -25° F. without any protection. When purchasing seeds or plants it’s probably a good idea to at least inquire where the plant material originated, if the seller knows. Passionflower seeds or plants from south Florida are probably likely to survive in New England, than plants originating from more northerly areas. While dying back to the ground each year, it makes a marvelous fast-growing climbing cover for a fence, or can be trained on a trellis as a focal point for the herb garden. In the South it will grow 20—30 ft. in a single season. In more northerly areas, expect a growth of about 15 feet in a season. Passionflower grows in waste places, thriving in relatively poor, sandy, acidic soils. Good drainage is essential. Full sun is necessary.
Propagation is by seeds, cuttings, or layering. Cuttings about six inches in length can be taken from mature plants, then rooted in sand. Maypop grows readily from seed—if one has patience. After harvesting the fruits, clean out the seeds from the mucilaginous fleshy aril surrounding them, then plant immediately. They may germinate late in the summer, or may sit dormant until the following spring. The experience of many who try passionflower from seed for the first time is disappointment, born of expectations that the seeds will germinate in a couple of weeks. Wait a year if you have to. The result of your patience and suspense will be worth it a few years later.
Propagation by layering can be achieved simply by removing the leaves from a small section of a stem in late summer, placing a portion beneath the soil, with a leafy end sticking out of the ground. Water well, and in a few weeks, the buried stem should produce roots. But wait. Keep the layer in the ground through the dormant months, allowing it to develop a full root system before transplanting. The layered cutting can be severed from the mother plant and placed in a new location. With a little luck and persistence, you will soon have your own passionflower planting. Of course, the easiest technique is simply to buy plants from a nursery. Young plants are often slow-growing, taking two or three years to establish. After that, watch out—it can entangle everything else in your perennial beds.
Passionflower as Food
In his “Thousand Mile Walk to the Gulf” John Muir speaks of the apricot vine (maypop) has having a superb flower “and the most delicious fruit I have ever eaten.” If you grow passionflower, you must taste the fruits. The fruits of the passionflower ripen from yellowish to light brown in color. The slimy aril covering the seeds is very sweet and fruity when ripe. The hard seeds can be separated from the pulp through a sieve or apple sauce strainer. Or if you are in the garden, you can pop open the ripe fruit and suck the delicious pulp from the fruit. Make sure that the fruit is not over-ripe. Perfectly ripe fruits are delicious . Over-ripe fruits ferment into a foul paste.
Passionflower, Passiflora incarnata
At the annual funding-raising auction of the Arkansas Native Plant Society a few years ago, I was the fortunate high bidder on two jars of maypop jelly. I know of no other native fruit whose flavor is best described as “indescribable.” The best maypop jam recipe can be found in Billy Joe Tatum’s Wildfoods Field Guide and Cookbook (Workman Publishing Co., Inc., New York 1976). Billy Joe’s book, which transformed wild edible from the realm of survival food to haute cuisine, also contains a delicious recipe for maypop punch, and maypop ice, a cool refreshing beverage with juiced maypops and pineapple sherbet. To make 10 half-pint jars of maypop jam, she combines 5 cups of gently rinsed maypops, with a 1/2 cup of lemon juice, one box of powdered pectin and 7 1/2 cups of sugar. Enough water is added to barely cover the fruit. Standard procedures for making jam are followed.
Passionflower was a minor food item of American Indian groups in the Southeastern U.S. Archaeological evidence shows that maypop seeds could be found at Indian camp sites over 5000 years old. Seventeenth century visitors to Virginia such as the Englishman William Starchey observed the harvesting of fruits from corn fields. Calling it maracock, Starchey described it as “of the bigness of a green apple, and hath manie azurine or blew kernells, like as a pomegranat, a good sommer cooling fruit.” It is unclear whether native groups intentionally planted the passionflower as a crop or whether it simply occurred naturally on the disturbed ground at the edge of the plot. It is clear, however, that native groups of the Southeast enjoyed this late summer fruit for many centuries.
Passionflower as Medicine
Passionflower, Passiflora incarnata
Passionflower never became an important medicinal plant in the U.S. Like many American medicinal plants, however, it is more highly revered in modern Europe than in its native land. In the second volume of his 1830 Medical Flora or Manual of Medical Botany of the United States the naturalist Constantine Samuel Rafinesque makes one of the earliest reference to medicinal use. He recommends a syrup of the fruits as a cooling agent for fevers. The leaves, he says are used externally, and the juice given to dogs to cure the “staggers or epilepsy.” This use was first recorded in 1787 by a German surgeon, Johann David Schoepf, who served with Hessian mercenaries siding with the British during the Revolutionary War.
In Europe, passionflower products are used as mild nerve sedatives and a sleep aid. The introduction of this medicinal use is credited to Dr. L. Phares of Mississippi who in an 1840 issue of the New Orleans Medical Journal, recorded its use. Remaining an obscure reference in the literature, Dr. I.J.M. Goss of Atlanta reintroduced passionflower into Eclectic medical practice in the late nineteenth century.
Dr. E. D. Stapleton writing in a 1904 issue of the Detroit Medical Journal summed up his experience in using passionflower tincture to treat insomnia “I would say that its action is best obtained in cases of nervousness due to causes other than pain-that it is slow in acting because it is not a narcotic, but a nervine and sedative. It relieves irritation of the nerve-centers and improves sympathetic innervation, thus improving circulation and nutrition, and is as a rule sure in its results-no bad after-effects, no habits formed”.
In the eighteenth edition of King’s American Dispensatory (1898), authors H.W. Felter and J.U. Lloyd characterize its action. “Its force is exerted chiefly upon the nervous system, the remedy finding a wide application in spasmodic disorders and as a rest-producing agent. . . It is specially useful to allay restlessness and overcome wakefulness, when these are the result of exhaustion, or the nervous excitement of debility. It proves specially useful in the insomnia of infants and old people. It gives sleep to those who are laboring under the effects of mental worry of from mental overwork.” Sounds like I need some myself.
Yellow Passionflower, Passiflora lutea, with fruits the size of a pea. It occurs from Pennsylvania to Florida, west to Texas, northward to Illinois. Although yellow wild passionflower is very rarely mentioned in the medicinal plant literature, in 1840 Dr. L. Phares of Mississippi is said to have used this small North American vine interchangeably with the common passionflower.
It is interesting to note that while yellow wild passionflower (P. lutea) is very rarely mentioned in the medicinal plant literature, Dr. Phares of Mississippi is said to have used this small North American vine interchangeably with the common passionflower. I have made a tincture (alcohol extract) of both plants. They have a very similar flavor and fragrance. The fruits are decidedly different, though. Those of P. lutea are globular black berries, about 1/4 inch across. They have a much more acidic flavor than maypop.
Herbal Medicine Past and Present by John K Crellin and Jane Philpott (Duke University Press 1990) is based on extensive interviews over a seven year period with an Alabama herbalist, Tommie Bass. Bass, quoted in the text says, “Its the most wonderful sleep and pacifying plant, valuable for a nerve medicine . . . Any good sleeping medicine has passion-flower in it.”
Today the American passionflower is used in a number of proprietary phytomedicines (plant medicines) in Europe, used for “conditions of nervous anxiety.” A dosage of 4-8 g. of the herb per day in infusion (tea) or other methods of preparation such as equivalent extracts for internal use. Products are made from the fresh or dried whole plant (excluding the root). It is usually collected at flowering time. It is also widely used as a sleep aid. The fresh or dried whole plant as well as their preparations are also used in daily dosages equivalent to 0.5 to 2 g. of the herb, or 2.5 g in tea (about a teaspoon of the dried, ground herb). Preparations include tea, tinctures, fluid extracts, solid extracts, and even sedative chewing gums. Passionflower is also combined with valerian and hawthorn in products used in Europe to treat digestive spasms, gastritis, and colitis.
Like many medicinal herbs, the exact chemical components responsible for the plant’s sedative activity have not been definitively identified. Researchers have found small amounts of components known as harmala-type alkaloids in the plant, as well as compounds called flavonoids. In Germany, passionflower preparations were regulated to contain no more than 0.01 percent of harman alkaloids. Some believe the flavonoids to be active compounds. Still other researchers believe that substances known as maltol and ethyl-maltol may be responsible for the sleep-inducing and muscle relaxant activity attributed to passionflower. Generally it is believed that the sedative effect is probably a result of an interaction between the alkaloids and flavonoids found in the extract.
While the active constituents and mechanism of action of passionflower requires more studies, various studies confirm a sedative effect on the central nervous systems. The degrees of effect is dependent upon dose. Extracts of the herb inhibit fungi and bacteria. Studies indicate that the herb (or its extracts) relieves spasms, has a sedative effect, allays anxiety, and lowers blood pressure. The experience of numerous medical practitioners and herbalists in Western herbal traditions generally confirm the plant’s safety and efficacy.
Most of the supply of dried passionflower leaves either cultivated or wild-harvested in the U.S. goes to the European market. Farmers treat it as a weed in the South. USDA scientists focus on developing it as a new fruit crop for the U.S. Gardening enthusiasts appreciate the passionflower and subtropical passionflowers for their fantastic, colorful floral assemblage. Wild food enthusiasts, delight in its delicate, delectable flavor. And if you are a herb gardener, you’ll undoubtedly enjoy adding passionflowers to your herbary.
Yellow Passionflower, Passiflora lutea, a member of the Passifloraceae or passionflower family, a predominantly Neotropical American plant group of about 500 species, with three temperate North American representatives including, Passiflora lutea.
References:
ESCOP. 1997. Passiflora herba. In ESCOP Monographs on the Medicinal Use of Plant Drugs. vol. 4. Exeter, UK: ESCOP Secretariat.
Felter, H. W. and J. U. Lloyd. 1898 Kings American Dispensatory, 18th ed. 2 vols. Portland, OR: Eclectic Medical Publications, reprinted 1983.
Foster, S.1991. “The Passionflowers.” The Herb Companion (August/September): 18-23.
Foster S. 1993. Herbal Renaissance: Growing, Using and Understanding Herbs in the Modern World. Salt Lake City, UT: Gibbs Smith.
Foster, S. and J. A. Duke. 2014. Peterson Field Guide To Medicinal Plants: Eastern and Central North America. Boston: Houghton Mifflin Harcourt Co.
Gremillion, K. J. 1989. The Development of a Mutualistic Relationship Between Humans and Maypops (Passiflora incarnata L.) in the Southeastern United States. Journal of Ethnobiology. 9(2):135-158.
Hoch, J. H. 1934. The Legend and History of Passiflora. American Journal of Pharmacy. (May): 166-170.
Krellin, J.K. and J. P{hilpott. 1990. Herbal Medicine Passt and Present. 2 vols. Durham, NC: Duke University Press.
Mabberley DJ. 2008. Mabberley’s Plant-Book. Third Edition ed. Cambridge, UK: Cambridge University Press.
McGuire, C.M. 1999. Passiflora incarnata (Passifloraceae): A New Fruit Crop. Economic Botany 53(2):161-176.
Olin, B. R., ed. 1989. “Passion Flower.” The Lawrence Review of Natural Products. (May):1-2.
Speroni, E., and A. Minghetti.1998 Neuropharmacological Activity of Extracts from Passiflora incarnata. Planta Medica 54: 488-491.
Ulmer T, MacDougal JM. 2004. Passiflora: Passionflowers of the World. Portland, Oregon: Timber Press.
Vanderplank J. 1991. Passion Flowers (and Passion Fruit). Cambridge, MA: The MIT Press.
Weiss, R.F. 1988. Herbal Medicine (translated from German by A.R. Meuss). Beaconsfield, England: Beaconsfield Publishers Ltd.
The all new third edition of a Peterson Field Guide to Medicinal Plants and Herbs: Eastern and Central North America.
Roger Tory Peterson (1919-1996) wrote and illustrated A Field Guide to Birds: Eastern and Central North America, now in its 6th edition, first published in 1934. He invented the modern 20th century concept of field guides, introducing generations of Americans to the flora, fauna and natural features of North America. Peterson Field Guides have now been for published 80 years.
The third edition of the Foster and Duke Field Guide to Medicinal Plants is expanded to include 60 new species not found in previous editions. The book includes 531 species accounts with information on 588 medicinal plant species. With 705 color photographs by Steven Foster, over 88% of the images are new. Over 66% of the plants in the book are native species, while 33% represent non-native, mostly European and Asian aliens.
Medicinal plants and herbs are all around us
Whether hiking along a remote Appalachian mountain trail or simply observing plants in one’s own yard, medicinal plants can be found everywhere humans live and travel.
Can we control invasive alien weeds by finding a use for them? Many homeowners attempt to eliminate weeds from their yards—dandelions, English plantain, and chickweed. Some call them weeds. We call them medicinal plants.
Some garden plants, such as English Ivy, are registered as ethical drugs in Europe, in this case for the treatment of coughs and upper respiratory tract infections.
Inspiring Conservation awareness:
A Field Guide to Medicinal Plants and Herbs provides a glimpse of the human experience with plants. Native medicinal plants from the eastern deciduous forest, including black cohosh, goldenseal, and American ginseng are among more than 150 native species that are still harvested from the wild and enter international commerce. Sustainable use of these valuable resources is paramount for future generations.
Conservation of these important genetic resources is informed by awareness of their medicinal value.
“Without knowledge there is no appreciation. Without appreciation there is no conservation.”
New Research, New Details—Reconciling tradition with science:
Uses have been thoroughly updated and revised, with more nuanced detail on historical use in pre-21st century America and elsewhere, including ethnobotanical details by specific native American groups, traditional use by American physicians and herbalists, and information on historic or modern use in Europe, China, and elsewhere.
Details on the latest scientific developments that in many cases reveal a rational scientific basis for traditional use.
Rather than use the internet or secondary references, the authors went to great lengths to scour the original references from which the information is derived, whether a 17th century renaissance herbal or the latest original scientific studies.
Since the publication of the second edition in 2000, worldwide research on medicinal plants has increased by a factor of at least 5-fold. Prior to the year 2000 a PubMED search for Echinacea in the title of a scientific paper returns 80 unique studies. A search for Echinacea in the title between 2000-2013 yields 443 studies.
Names, Distribution, Descriptions, and Flowering Times Updated:
The last decade produced a dramatic increase in the study of plant genetics leading to changes in plant taxonomy and family associations. New taxonomic designations are provided along with the synonyms of familiar scientific names from earlier works.
Plant biology and plant geography is dynamic, not static. We have revised and updated geographical distribution and occurrence details. Many non-native species have greatly increased in distribution, a disturbing but important data set.
A surprising aspect of revising data was the need to readjust the range of blooming periods. With the effects of climate change, some plants are blooming earlier (or in some cases later), which may reduce or extend flowering or fruiting, depending upon species and distribution range.
Updated Information on safety, toxicity and drug interactions:
The book contains appropriate warnings on those plants that can lead to poisoning or toxic reactions, sometimes even by handling the plant. Some plants, such as St. John’s wort are known to interact with enzyme systems that interfere with the absorption of prescription drugs, sometimes increasing or decreasing the drug’s effective dose. Important examples such as St. John’s wort are update to reflect that new research.
Cover of the 1st edition published in 1990.
First published in 1990 Steven Foster and Jim Duke’s A Field Guide to Medicinal Plants: Eastern and Central North America (Softcover: ISBN 0-395-46722-5) featured information on the identification and use of about 500 medicinal plants of eastern and central North America. It was the first modern comprehensive field guide to medicinal plants. The book included pen and inks by Roger Tory Peterson, Lee Peterson and Jim Blackfeather Rose. A 48-page color insert had nearly 200 photographs. With 366 pages it was the 40th title in The Peterson Field Guide® Series. If you have the first edition, you don’t have the third edition. Simple as that.
Cover of the 2nd edition published in 2000.
In 2000 we produced a new edition of the title, this time calling it A Field Guide to Medicinal Plants and Herbs: Eastern and Central North America, with no line drawings, illustrated with photographs. Herbs had come of age by the year 2000. In 1990, annual herb product sales were about $250 million, and by 1990 they had surpassed $3 billion largely the result of the dietary health and supplement act on 1994, which created the regulatory category of “dietary supplements” and moved herb products from health and natural food stores into the mass market. A few years earlier, the infant internet also began to play a role in marketing and distribution. If you have the second edition, we think you will enjoy the all new third edition.
Naked ladies or Surprise lilies trumpet their pink splendor in mid to late summer. These beautiful ladies are part of our foreign diversity in Eureka Springs and eastern North America generally, but alas they are just plants. Known as surprise lily, resurrection lily, magic lily or naked ladies, this pretender is laid bare not as a lily at all but a member of the Amaryllis family (Amaryllidaceae). These late blooming beauties produce unnoticed leaves in the spring, which soon die back. Out of the hot bosom of steamy August air a whorl of large showy flowers atop a leafless (naked) stalk pops from the ground.
From a 9 April 1990 article by Sereno Watson in Garden and Forest_A Journal of Horticulture, Landscape Art and Forestry.
Although not generally considered a medicinal plant, it does have bioactive components. Fayetteville, Arkansas’s KUAF Producer, Jacqueline Froelich aired a story on Surprise Lilies on 14 August 2014. You can listen to the story here. One of the alkaloids found in Lycoris squamigera is galanthamine, one of several toxic compounds in the plant. It is also famously known from the related amaryllis family member Galanthus nivalis or snow-drops a common alpine species in mountains of Europe, which is grown as an ornamental in North America, and occasionally naturalized. First isolated in the 1950s, galanthamine, formerly extracted from Galanthus nivalis, is now produced synthetically on an industrial scale. It was used in some parts of the world in the 1950s to treat nerve pain associated with polio. Today, the compound is regarded as a long-acting, selective, reversible and competitive acetylcholinesterase (AChE) inhibitor used in the systematic treatment of mild to moderate cognitive impairment in early stages of Alzheimer’s disease.
Amaryllis and it relatives cause plant name consternation. The genus Lycoris (to which our naked ladies belong) is native to eastern Asia, while Amaryllis is native to the Western Cape of South Africa. In 1753 Linnaeus named Amaryllis belladonna. Another closely related genus in the Amaryllis family is Hippeastrum from tropical America. The “amaryllis” that bloom around Christmas, available wherever bulbs are sold, are mostly hybrids of South American Hippeastrum species.
Lycoris squamigera #7547 from Curtis’s Botanical Magazine, 1897.
Our common naked lady is the Asian species Lycoris squamigera, an inelegant scientific name for an elegant plant. It superficially resembles the South African Amaryllis belladonna but differs in significant botanical characteristics as well as continent of origin. The first European illustration comes from a periodical famous for its unabashed Victorian paintings of reproductive organs (of plants)—Curtis’s Botanical Magazine volume 123, August 1, 1897. No doubt many gardeners, horticulturists and botanists have been confused by these relatives in the amaryllis family. It is no surprise that the surprise lily itself has lived under three scientific names over the decades including Hippeastrum squamigerum and Amaryllis hallii as well as the name used for more than a century—Lycoris squamigera.
Join me for a botanical photo workshop sponsored by Finca Luna Neuva Lodge in Costa Rica, 9-15 April 2016. Spend six nights at the beautiful eco-lodge and Certified Biodynamic herb farm, Finca Luna Nueva. Located just miles from one of the world’s most active volcanoes, the Arenal Volcano, Finca Luna Nueva is nestled in the heart of the country’s most pristine rainforests. Sign-up deadline is 8 March 2016.
Turmeric
The workshop will focus on techniques for improving plant and nature photography while exploring tropical beauty and attaining a deeper understanding of how to relate to plants. The fee is $1300 (double occupancy) and $1600 (single room) that includes six nights accommodation, all meals and airport transfer. Round trip airfare from your originating airport to San Jose Costa Rica (SJO) is additional. To reserve your space email: grupos@fincalunanuevalodge.com.
Finca Luna Nueva Lodge features the best of tropical comfort including an ozonated swimming pool and solar heated Jacuzzi along with spa services. Delightful meals of Costa Rican-Asian fusion cuisine, served three times a day are included with the package. Much of the food is produced on the farm.
Finca Luna Nueva Lodge features well-groomed hiking trails, along with the Sacred Seed Sanctuary Semillas Sagradas, an ethnobotanical garden harboring over 250 medicinal herbs. The garden, first established in 1994, has evolved under the guidance of New York Botanical Garden ethnobotanist, Michael Balick, America’s herbalist-in-chief, Jim Duke, and Costa Rican ethnobotanist, Rafael Ocampo. This extraordinary collection of neotropical medicinal plants is under the care of Steven Farrell, President of Finca Luna Nueva and Biodynamic farmer extraordinaire. The garden serves as a model for the creation of other Semillas Sagradas ethnomedicinal gardens elsewhere, in an effort to preserve not only local biodiversity, but the indigenous traditions that are keepers of the knowledge. Rafael Ocampo and Michael Balick co-authored Plants of Semillas Sagradas: An Ethnobotanical Garden in Costa Rica (2009). The book can be downloaded as a pdf file at the Finca Luna Nueva website. And that’s just a taste of the botanical offerings. Turn around at any moment and you could see a three-toed sloth, emerald basilisk lizard, green iguana, red-eyed frog, toucan or morpho butterfly!
Last week’s annual meeting of the Society for General Microbiology held in Birmingham England, announced some really exciting new research or the Society has a really good publicist. Papers presented at the meeting made worldwide news. One paper from researchers at Cardiff Metropolitan University, showed that date syrup a common sweetener in the Middle East, has antibacterial activity against Staphylococcus aureus and Escherichia coli (the ubiquitous “E. coli”), that was as good as or better than honey as an antibiotic. Okay, like I said the Society has a great publicist. Researchers from the University of York reported on the discovery of a unique set of enzymes that help the bacterium Staphylococcus hominis create compounds called thioalcohols—revealing the chemical key to turning sweat into body odor! Good work publicist!
The study that got the most air, print, and internet play was from researchers at the University of Nottingham who reported that a complex formula teased from a thousand-year-old Anglo-Saxon manuscript in the collection of the British Museum—Bald’s Leechbook—was surprisingly effective against methicillin-resistant Staphylococus aureus, better known as MRSA.
You don’t want a spacesuit encased physician to walk into your hospital room to inform you that you have MRSA and that they will have to move you to the hospital’s Ebola wing. . . The irony of this misplaced humor is that eight years ago, my father went to visit my older brother in a hospital after surgery, and just from visiting, my dad got a staph infection that is still with him now. And today, 10 April 2015, I write these words as I sit at my step son’s hospital bed after he had an operation yesterday. As he snores softly while firmly in the embrace of Morphius, the words repeat in my head, “wash your hands often.”
Likely in rural England 1,000 years ago, human immune systems were much more active than today, stimulated by what was undoubtedly a microbial-rich domestic environment. The 9th century recipe studied by the University of Nottingham scientists included two types of onion relatives, combined with wine and oxgall.
Dr. Christina Lee, Associate Professor in Viking Studies and member of the University’s Institute for Medieval Research translated the recipe, the original of which was reportedly a topical eye salve formula. The recipe not only calls for two species of Allium (garlic and onion or leek), wine and oxgall (bile from a cow’s stomach), it also describes a very specific method of making the preparation in a brass vessel, straining it then allowing the mixture to cure for nine days before use. See 30 March 2015 Press Release from the University of Nottingham. A video with interviews with the researchers is embedded in the press release.
The scientists at Nottingham made four separate batches of the remedy using fresh ingredients each time, as well as a control treatment using the same quantity of distilled water and brass sheet to mimic the brewing container but without the vegetable compounds. Microbiologists at the University of Nottingham then recreated and tested the concoction against MRSA, and were astounded to find a more than 90% effective rate against the bacterium.
Dr Lee (quoted in the Press Release linked above) said: “We were genuinely astonished at the results of our experiments in the lab. We believe modern research into disease can benefit from past responses and knowledge, which is largely contained in non-scientific writings. But the potential of these texts to contribute to addressing the challenges cannot be understood without the combined expertise of both the arts and science.
“Medieval leech books and herbaria contain many remedies designed to treat what are clearly bacterial infections (weeping wounds/sores, eye and throat infections, skin conditions such as erysipelas, leprosy and chest infections). Given that these remedies were developed well before the modern understanding of germ theory, this poses two questions: How systematic was the development of these remedies? And how effective were these remedies against the likely causative species of bacteria? Answering these questions will greatly improve our understanding of medieval scholarship and medical empiricism, and may reveal new ways of treating serious bacterial infections that continue to cause illness and death.”
Dr Freya Harrison, a University of Nottingham microbiologist led the work in the laboratory with Dr Steve Diggle and Research Associate Dr Aled Roberts. She presented the findings at the Annual Conference of the Society for General Microbiology on Monday 30th March 2015 in Birmingham, England.
According to the press release, Dr Harrison commented: “We thought that Bald’s eyesalve might show a small amount of antibiotic activity, because each of the ingredients has been shown by other researchers to have some effect on bacteria in the lab – copper and bile salts can kill bacteria, and the garlic family of plants make chemicals that interfere with the bacteria’s ability to damage infected tissues. But we were absolutely blown away by just how effective the combination of ingredients was. We tested it in difficult conditions too; we let our artificial ‘infections’ grow into dense, mature populations called ‘biofilms’, where the individual cells bunch together and make a sticky coating that makes it hard for antibiotics to reach them. But unlike many modern antibiotics, Bald’s eye salve has the power to breach these defences.”
Denied further funding for the project by a UK government agency, the “AncientBiotics Project” leader Dr. Freya Harrison is using Crowdfunder.co.uk page to request small contributions to continue the research.
The short video clip accompanying the University of Nottingham press release very briefly mentions the 1865 (Volume 2) of T. O. Cockayne’s translations from Bald’s Leechbook (and others). You can access the three volumes (1864, 1865, & 1866, respectively) by clicking on the links below:
One element missing from most news reports on the AncientBiotics Project is the fact that this type of multidisciplinary research called “text mining” is relatively new. Historians or linguists search historic manuscripts or antiquarian books for targeted words or concepts, then field and laboratory researchers from various disciplines use the data to design experiments. The Internet increases text mining exponentially, since once doesn’t have to be in the physical presence of a manuscript to review it, since many records are now digitized and readily accessible on-line. Similar research is being quietly conducted worldwide.
We all know that Christopher Columbus didn’t discover America, but he gets credit for it. Why? It is because the printing press arrived in Europe in 1440, developed by the German goldsmith, Gutenberg. The Chinese had developed movable type and printing processes 600 years earlier. The printing press allowed news to travel faster. The 1493 letter of Christopher Columbus to his sponsors describing his discoveries was immediately published in several languages and distributed throughout Europe. One can image him bowing before King Ferdinand and Queen Isabella and with a wink and smile while saying, “It’s all in the P.R.”
Tuesday February 3, 2015, the New York Attorney General, Eric T. Schneiderman, issued a press release on an action taken the previous day in which his office delivered “cease and desist” letters to four major retails including GNC, Target, Walgreens, and Walmart alleging that they were selling herbal dietary supplements that did not contain the plant materials listed on the product labels. The herbs included Echinacea, Garlic, Ginseng, St. John’s Wort, and Saw Palmetto. According to the Attorney General’s press release 79% of the products tested, either did not contain the plant material claimed on the label or contained other plant materials not listed on the label. All of the products were “store brands,” made by contract manufacturers.
“This investigation makes one thing abundantly clear: the old adage ‘buyer beware’ may be especially true for consumers of herbal supplements,” said Attorney General Schneiderman. “The DNA test results seem to confirm long-standing questions about the herbal supplement industry. Mislabeling, contamination, and false advertising are illegal.” “Seem” is the operative word here.
Schneiderman has apparently been watching too many episodes of CSI “city du jour” in which the DNA always solves the crime. DNA analysis for plants is great for botanicals or plant specimens in which intact DNA still exist, but if you are testing an extracted plant ingredient—PRESTO—the DNA except in rare cases no longer exists!
Every qualified, experienced plant analytical laboratory that authenticates botanicals day-in-and-day-out, knows that DNA alone is unreliable for testing plant extracts. Instead validated chemical analytical methods along with other validated lab methods are used. See link at the end of this article to see the American Herbal Pharmacopeia’s 54-page response to Attorney General Schneiderman which includes the appropriate lab methods to i.d. of the plant extracts in question.
A retired plant scientist friend mused, “if DNA testing is required for validating plant ingredients claimed to be in any product, the supermarket shelves would be empty.” If Schneiderman had applied the same DNA method to the brown liquid in the cup of coffee he might have drunk before his news conference, the test would have likely shown that his cup of coffee contained no detectable DNA of the coffee plant!
This is a case in which a public official, under the guise of science, has made allegations without confirming the validity of the science. Curiously, no plant genomic scientists I know had heard of the lab or researcher who did the testing! Turns out they hired a DNA lab specializing in reptile and dinosaur identification! I suppose that New York Attorney General Eric T. Schneiderman decided to hire this lab after he had heard that the lab was run by “cold-blooded scientific investigators.”