Human Flower Project

Orrington, MAINE USA

flag flower bed

parker basket thumb
Princeton, MAINE USA

Monday, July 30, 2007

Plant Names as Portals to Knowledge

Much as we love the imagery of “baby’s breath,” now we’re determined to call it Gypsophila paniculata, too. James Wandersee and Renee Clary provide a friendly guide to botanical names and a rationale for using them. Thank you so much, Jim and Renee. For us and for others who write about plants, it’s bookmark time.

By James H. Wandersee and Renee M. Clary

EarthScholars™ Research Group

Think of a plant’s name as a key, one that unlocks the gate to the accumulated human knowledge about that tree or flower. A particular rose seen in the open forest may smell as sweet no matter what we call it, but if you want to move beyond appreciating its fragrance to finding out more about that flower, you need to know that its favored common name is the Woods’ rose (named after Joseph Woods) and its botanical name is Rosa woodsii Lindl.


Woods’ rose (Rosa woodsii Lindl. )

Photo: Utah State University

When you were young, you no doubt learned via social interaction, and without much conscious effort, to identify some of the plants that surrounded you. But the names that you learned were common names—rose, tulip, grass, lily, clover, corn, snapdragon, evergreen tree. Indeed, all of us began our exploration of the Plant Kingdom by learning the vernacular (common) names of plants.  As long as we were communicating with people within our immediate surroundings, those names sufficed.

However, as a reader of the Human Flower Project, you are exposed to plants from other regions, cultures, nations, and continents. Because of those four variables, it is possible for a single plant to have hundreds of different common names, which can thwart effective communication and hinder understanding of the world’s plant life (flora). The Woods’ rose, for example, is also known as the western wild rose or the mountain rose or the fragrant rose, depending upon where you live in the US.

While the plethora of common plant names may be fascinating to linguists, folklorists, and anthropologists, it is utterly frustrating for those of us interested in the free global exchange of plant information in the 21st century. Happily, there are two accepted systems for the unambiguous and accurate naming of wild and human-selected and propagated plants, worldwide—one for botanical names (International Code of Botanical Nomenclature) and one for cultivated plants (International Code of Nomenclature for Cultivated Plants). Here we shall focus on the former.

Systems for assigning unique and concise names to plants date back to 1753 when the Swedish botanist Carolus Linnaeus (formerly, Carl von Linne) assigned two-part Latin names to all the known plant species, in his 1753 book, Species Plantarum

image1762 edition of Species Plantarum

Photo: NC State University Library

It can take a lifetime to learn all the nuances of botanical naming (and there are important exceptions to some rules), but here are a few key elements of naming plants today.

• Besides having a common name(s), every plant has been assigned a two-part botanical name known as its species name. For example, the date palm’s botanical species name is Phoenix dactylifera L. Botanical names are always italicized in print or underlined in handwriting. Example: Phoenix dactylifera L.

• The first part of the species name is called the generic name (or genus name).  Its first letter is always capitalized, such as in Phoenix. By the way, the plural of “genus” is “genera.”

• The second part of the species name is called the plant’s specific epithet, such as dactylifera.  The first letter of the specific epithet is always typed in lowercase, even if it is derived from a proper noun like America, such as in Fraxinus americana (white ash). The species names of all plants have two parts like this (There is no Cher, Madonna, or Prince in the botanical world.)

• There may or may not be an abbreviation following the species name.  The L. after the species name of the date palm (Phoenix dactylifera L.) signals that the authority for their names (i.e., their namer) was the famous Swedish botanist, Linnaeus. Such authority abbreviations are not to be italicized. If there are two authoritative abbreviations following the species name, the first represents the original namer, and the second is the person responsible for the plant’s current name.


Date Palm (Phoenix dactylifera L.)

Photo: Egyptian Palm Trees

• In the case of the date palm, Phoenix dactylifera L., its generic name was already used by Theophrastus (the father of botany, c. 300 BCE) and comes from phoenix = Phoenician, because the Phoenicians were credited with spreading these plants throughout the Mediterranean region. Its specific epithet is an amalgam of dactylus = date, and fero = “I bear”, that is, “date-bearing.”

• No two plants can have the same botanical name, although you may see the same specific epithets reused for different genus names. For example Syringa vulgaris  is common lilac and Phaseolus vulgaris L. the common bush bean.

• The word species is both singular and plural. “Prance and Beenjie (2000) estimated that there are 320,000 plant species” (plural), and “Ornamental plants marketed under the name European wand loosestrife and purple loosestrife are in fact members of the same species” (singular).

• When you use a botanical name repeatedly in the same article, type the full botanical name the first time it appears; thereafter, you can use only the capitalized first letter of the generic name plus a period in place of the entire generic name and omit the authority. Thus Rosa woodsii Lindl., once introduced, becomes R. woodsii in subsequent usages.  If you want to refer to several species of roses, you can simply type Rosa spp.

• Species names sometimes have varietal, subspecific or forma epithets that indicate a particular botanical subcategory. Example: Mentha spicata L. var. viridis (which is the ‘Ganga’ mint plant). The epithets themselves are italicized, but the abbreviations “var.” or “subsp.” or “f.” never are.

• Plant species names may be changed over time to reflect increased scientific understanding, so always make sure you are using the currently accepted botanical name when searching for information. Be forewarned, too, that the botanical names (if present) on the labels of commercially marketed plants are often inaccurate.

image• A major problem with using common names is that most of the world’s plants either have no common name or they don’t have equivalent names in other languages.

• While plant people often balk at using botanical names because they are Latinized, long, and polysyllabic, they probably already use some botanical names as common names—like fuchsia, chrysanthemum, aster, palm, and rhododendron.

• A cautionary note: The naming of (a) hybrids resulting from the crossing of two species; (b) cultivated plant varieties (cultivars); (c) plants registered under Plant Breeders Rights; (d) trademarked plants; and (e) especially, cultivated orchids, follows more complex rules. These matters are beyond the scope of this article.

• A good way to further your knowledge of plant naming is to consult the 4th edition of The Names of Plants by David Gledhill (Cambridge University Press, 2007).

Finally, there are many plant species that once lived on Earth that are no longer alive today. Fossils can provide us with a glimpse of some of these extinct plants. There must have been millions of plant species that existed throughout the Earth’s history that are now extinct.  Kaspar Maria (Count) von Sternberg of Bohemia (c. 1818) was the first paleobotanist (fossil plant scientist) and the standard authority abbreviation “Sternb.” is still applied to fossil plant species that he described and named.

Naming fossil plants is an investigative challenge because fossils of entire plants are rarely found. Plants naturally break into pieces while they are alive and fragment even more during fossilization. Not all plants in a given plant community are equally likely to be included in the fossil record, either. Just as animals with hard parts such as shells or bones tend to be better preserved in the fossil record, fossilization processes also favor large or woody plants that have more resistant tissues, over small herbs. (The botanical definition of an “herb” is a seed-producing annual, biennial, or perennial plant that does not develop persistent woody tissue but dies down at the end of a growing season—which differs from the definition used by herbalists.)


One of the largest plant fossils ever found

Scale tree (12 ft. x 13 ft.) from Pella, Iowa

Photo: National Museum of Natural History

Genus names are often applied without species identification when scientists are uncertain about the species name of a plant fossil. The Kentucky Geological Survey notes that “Paleontologists classify and identify fossils based on their shapes. “ Comparison with existing plants’ parts can be a big help. For example, two ample collections of cleared leaves at the Smithsonian Institution and Yale University provide some of the best comparative material for studying fossil leaf vein patterns using the 410 families of today’s flowering plants.  Knowledge of the geological context in which a plant fossil was found is also essential.

Scientific comparison is not only the basis of trustworthy plant science, but also of the appropriate identification and naming of plants—extant or extinct. 

Just as human parents agonize over the most suitable name for their offspring, botanical naming is not taken lightly. Botanists must first build a scientific case for an appropriate botanical name before it can be approved by the International Botanical Congress, which meets once every six years. There is a story behind almost every plant name listed in the Appendices of the International Code of Botanical Nomenclature (ICBN), which is many pages larger than the Code itself. This database documents the steps that plant naming proposals go through, so that anyone can trace the history of every proposed botanical name.

In short, what value is knowing a plant’s current botanical name? It’s your priceless international key to the library of accumulated plant wisdom!

Posted by Julie on 07/30 at 02:55 PM
Culture & SocietySciencePermalink

Saturday, July 28, 2007

Fireweed: Countdown to Winter

In parts of Alaska, the fireweed bloom casts the date for winter. That’s right: just two months away.


Fireweed in flower, motivating Alaskans

Photo: Kim Lehman and Mark Wieland

“Here is the deal,” writes Fish Taxi, blogging from Valdez, Alaska. “Once the Fireweed blooms to the top and goes to seed we have six weeks ‘til winter. How it looks today we have two months. Give or take a few blooming days.” That’ll be “take,” since she made this prognostication on July 25th.

Epilobium angustifolium grows up to 8 feet tall and seems to inspire Alaskans with a huge range of emotions—elation, industriousness, melancholy, dread.

.(JavaScript must be enabled to view this email address) put together a fine essay about “summer’s clock,” from which we quote liberally.

“Sometime this month, when the plant reaches a height of a foot or two, the first blossoms will emerge several inches below the tip. As summer progresses, the petals will climb continuously higher. When they reach the tip, summer is all but over. For me it’s like when the villain in a B movie inverts the hourglass and challenges the hero to complete his task before the sands run out….

“A patch of fireweed lines my driveway and, every night, whether I am returning from work or a family outing, I gauge the distance between the highest bloom and the top of the plant. It often prompts a moment of reflection: Have I made good use of the day? Can I complete that long to-do list before summer’s end?

imageHalfrack the cat

ponders the fireweed

Photo: Fish Taxi

“More than once I’ve glanced at the shrinking gap between bloom and tip and skipped watching TV in favor of a hike up the valley with Melissa. Or I’ve forgone dinner and thrown the float tube into the truck to spend the evening casting for trout in a glassy lake. The fireweed is a compelling signal to get out and do something, because when bloom reaches tip and the plant goes cottony with seed, I know the wind that will spread next year’s crop of fireweed will soon bear winter’s first flakes of snow.”

Fish Taxi, like many fellow Alaskans, has been “compelled” to make fireweed honey, and passes along Marilyn’s recipe. Here’s also Kim Lehman’s recipe, which we can vouch for, not having prepared it but having swallowed it. Delicious, strong and distinctive.

Here in Central Texas, where winter is something of a myth, it’s hard to believe that people in our hemisphere are looking for—and seeing—signs of impending snow. Our September is usually crispy hot though it is about the time when our own weather-casting oxblood lilies often bloom, announcing that the first cold front is on its way.

All you phenologists, please inform us of the flowering plants you read to know when to turn off the TV, how far off the winter is—or the fall—or when the Democrats will take back the White House.


Posted by Julie on 07/28 at 11:08 AM
CookingEcologySecular CustomsPermalink

Thursday, July 26, 2007

The Fluman Beings of New Zealand

The Arts Festival of Christchurch sprouts with human-floral hybrids.


Inflated orchids and animated ‘rose windows’

will come alive for the next two weeks

Image: Christchurch Arts Festival

A dear friend’s final wish was to visit New Zealand. And she made it, traveling from Texas to the Southern Hemisphere and the other side of the globe near the end of her days.

Now we are beginning to feel the pull. From what she told us and the (very) little we’ve seen and read, it seems that human New Zealanders are especially in tune with the plant world, not perhaps such great horticulturists as the Dutch or gardeners like the English or floral chefs like the Malaysians. Rather it’s as if they were part plant themselves, a little bit of chlorophyll dripping into the kiwi DNA.

Someday we’ll read up about Maori religion and better understand where this mystical sympathy comes from. Perhaps. It would be better just to go there, as our friend did, and meet these 6-foot, ambulatory flowers face to face. At four continents’ distance, we still can sense New Zealand’s “flumanity” via the Christchurch Arts Festival, which began today. Showing at Plantae Oceaniae are Jo Torr’s works, inspired by the 18th Century embroidery of Capt. James Cook’s wife; Torr has embellished a waistcoat with images of the first botanical specimens collected on Cook’s Pacific explorations.

imageWarwick Bell’s ‘Snow Orchids’

now blooming in Christchurch, NZ

Photo: David Hallett, for the Press

Multimedia artists Aaron and Hannah Beehre will be projecting a “Winter Rose” over the city cathedral’s Rose Window, a “flower” continually created by the bustle of people in the square below. Also, for Cathedral Square, Warwick Bell has designed huge buds of snow orchids which will “bloom” for the next 18 days—the duration of the festival. These look to us particularly like people dressed in flower costumes (a New Zealand pastime we’ve written of before). Bragging a bit on his own creation, Bell said, “It’s quite technically difficult to do. You’ve got this huge bulb head with a skinny stem holding it up, “

Well, right, Warwick. Some of us manage that every day!

For the many performances and exhibitions between now and August 12, the biennial’s organisers are expecting more than 175,000 people. And we’re supposing that a good third of them will have sepals.

Posted by Julie on 07/26 at 10:33 PM
Art & MediaCulture & SocietyTravelPermalink

Tuesday, July 24, 2007

Waltz of the Flowered Dresses

A museum in the U.K. pulls apart a century of floral outfits, prissy, frumpy, and almost funky.

imageMini-dress from the 1960s

with anemones and dandelions

Photo: Floral Frocks

Floral attire has been around a long time, since just after Eve grabbed for a fig leaf, we suspect. The Fashion Museum in Bath, England, hasn’t sent its historical researchers back quite that far, but they have mounted what appears to be an interesting exhibition—Pick of the Bunch—that looks at flowered dresses since about 1920.

The museum’s manger Rosemary Harden announced, “Every summer for the last 100 years or so, generations of British women have chosen to wear floral printed frocks for both the everyday and the special occasions in their lives. We are really thrilled that we have had the chance to present an exhibition on this area of fashion history, which we know will strike a chord.”


Queen Elizabeth II in flowered dress

visiting Adelaide, Australia, 1954

Photo: National Museum of Australia

While we’re no experts in couture, its strikes us that the emphasis on English dresses is—while perhaps of sociological and cultural interest—rather dowdy. The online exhibit features clothing suitable for affluent milkmaids. It’s not that we have anything against milkmaids, but where are the razzle-dazzle contemporary designs, the big kooky blooms of “Swinging London, ” or even preppy pink and greens of Lilly Pulitzer?

imageLilly Pulitzer fans

tend to run in packs

Photo: Lilly Pulitzer

Check out the Floral Frocks website for what’s there and what’s missing. The exhibition is strong on its history of fabrics, patterns, printing-techniques and dyes. And if you’re near Bath, catch the show, which is up through August 27th. “On Saturday 4 August, visitors wearing a floral frock or floral shirt or tie will be able to gain half price admission to the display.” We presume that fig leaves will qualify you for the discount also.

Of course, the designers and curators who composed the website pound on several staples (ouch!) of fashion advice. Here’s one: “Better to go for bold, abstract or painterly styles. If you can identify the specific variety of rose in a print, it belongs in a gardener’s handbook.” We must disagree! A well executed print of chrysanthemums, lilies or violets on fabric is not only an achievement but a delight—one that’s sustained many a child through a long homily. We can only hope that the lady in the next pew—or ahead of us in line at the post office—will be wearing this number from 1949, on view both at the museum and via its online exhibition: the only garment we’ve ever seen with fucshia blossoms.


Posted by Julie on 07/24 at 04:56 PM
Art & MediaCulture & SocietyPermalink
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