From the Lady Slipper Archives: Sweet fern—A rare Kentucky shrub with an interesting history

The Lady Slipper newsletter of the Kentucky Native Plant Society has been published since the Society’s founding in 1986. We occasionally feature an article from a past issue. This one, about a rare shrub native to Kentucky, sweet fern (Comptonia peregrina), first appeared in the spring of 2011, Vol. 26, No. 1. If you would like to see other past issues, visit the Lady Slipper Archives, where all issues from Vol. 1, No. 1, February 1986 to Vol. 34, No. 1, Winter/Spring 2019 (after which we moved to this blog format) can be found.

Sweet fern—A rare Kentucky shrub with an interesting history

By Tara Littlefield, Botanist, Kentucky State Nature Preserves Commission

The wax myrtle or bayberry family (Myricaceae) is known for its odor. These plants have resinous dots on their leaves, making their leaves aromatic. Plants in this family have a wide distribution, including Africa, Asia, Europe, North America and South America, missing only from Australasia. Myricaceae members are mostly shrubs to small trees and often grow in xeric or swampy acidic soils. More familiar members of the wax myrtle family include many in the Genus Myrica (sweet gale, wax myrtle), some of which are used as ornamentals and are economically important. In addition, the wax coating on the fruit of several species of Myrica, has been used traditionally to make candles.

Comptonia peregrina – KSNPC file photo

So what does this interesting family have in common with Kentucky’s flora? We are lucky to have just one species in the wax myrtle family, Sweet fern (Comptonia peregrina). In addition, it is also a monotypic genus restricted to eastern North America. This means that the genus Comptonia has only one species (C. peregrina) worldwide, and just happens to be found here in KY! Of course the common name sweet fern is misleading. This woody shrub is certainly not a fern. However, the leaves have a similar shape to pinnules of a fern frond (leaf). But having sweet in the common name is no mistake. If you crush the leaves throughout the growing season, a lovely smell is emitted as the essential oils volatilize into the air.

Sweet fern is a clonal shrub that grows up to one meter high and spreads through rhizomes.The leaves are alternate and simple, linear and coarsely irregularly toothed, dark green above and a bit paler below. It is monoecious (meaning male and female flowers on different plants). The female flowers are not showy—short rounded catkins [dense cluster of apetalous flowers, usually associated with oaks, birches and willows] with reddish bracts. The male flowers are elongated yellow-green catkins clustered at the branch tips, the pollen being adapted to wind dispersal. The fruit is a round,bur-like cluster of ovoid nutlets that turn brown when mature in late summer. The bark is reddish and highly lenticeled (small corky pores or narrow lines on the bark that allow for gas ex-change).

Female flowers (short round catkins with reddish bracts) and male flowers (elongated catkins clustered at the branch tips) www.nativehaunts.comphenology.html

While very common in the northern part of its range (northeastern United States and Canada), sweet fern is state listed endangered in Kentucky, along with being state listed as rare in Ohio, Tennessee, South Carolina, West Virginia, Georgia, and North Carolina. The populations of sweet fern in the southern part of its range are isolated and disjunct from the common habitats up north.There seems to be a close association of these remnant populations with the Appalachian Mountains, which suggests that the populations in the southern ranges remained in protected “refugia” during periods of great plant migrations, such as during glaciations.

Sweet fern is typically found in openings in coniferous forests with well drained dry, acidic sandy or gravely soils with periodic disturbances. In the north, it can be found in pine-oak barrens or jack pine and spruce forests that are maintained by fire, creating openings and decreasing competition. It has also been noted to colonize road banks and even highly disturbed soils such as mined areas. Contrary to these open coniferous habitats with periodic fire, the remnant populations of sweet fern in Kentucky and Tennessee are found on sandstone cobble bars, which are maintained by annual floods. Despite being found on habitats that are maintained by different disturbance regimes, these two communities share a few things in common—they are both dry, acidic, sandy and nutrient poor. Disturbances are a natural occurring impact in these communities that removes shrubs and saplings, thus decreasing competition so that sweet fern can thrive.

Sweet fern has adapted to these specialized habitats. It is a fires adapted species; it will resprout after a fire and increase its clonal sprouts through underground rhizomes. It is also a xerophyte, a plant adapted to dry conditions. And since it is adapted to living in nutrient poor, acidic soils, it has evolved with the bacteria Frankia that fixes nitrogen, somewhat like the more famous nitrogen fixing legumes who have partnered with the bacteria Rhizobium. Did you know that there are over 160 species of nonleguminous plants that fix nitrogen? It is also the host of the sweet fern blister rust (Cronartium comptoniae) which reduces the growth of pines, particularly Jack pine. What interesting relationships this shrub has with bacteria and fungi! In addition, sweet fern is the food plant to larvae of many species of Lepidoptera (moths and butterflies). These include the Io moth (Automeris io),and several Coleophora case-bearers (some of which are found exclusively on sweet fern).

But perhaps the most fascinating facts about the rare shrub sweet fern is what it can tell us about the evolution of plants, the history of the earth, and the paleovegetational past of Kentucky. Geologically speaking, sweetfern is an old plant. In Kentucky, it was most likely more common some 20,000 years ago during the last glaciation, as Kentucky used to look like Canada. Analysis of pollen in sediment cores taken from natural ponds in Kentucky confirms this, spruce and jack pine was common in the uplands in the bluegrass. Sometimes it is difficult to think of plants migrating north and south in order to adapt to a changing climate. But what is even more mind blowing is that the genus Comptonia is perhaps millions of years old. Numerous fossils of dozens of extinct specie of Comptonia have been found all across the Northern hemisphere, and the earliest of the fossils have been dated back to the Cretaceous period (the age of the Dinosaurs) over 65 million years ago. The first flowering plants(angiosperms) evolved only 135 million years ago, so Comptonia is one of the oldest living plants in the world—a true living fossil!

So when April comes around, and all of the spring wildflowers are emerging, think of sweet fern tucked deep into the gorges of Big South Fork and Rockcastle, its catkins releasing pollen in the wind, using the nitrogen fixed from its bacterial friends, withstanding the massive floods of two of Kentucky’s last wild rivers. And if you use your imagination, you may be able to see dinosaurs and tree ferns in the distance.

Berry, Edward W. 1906. Living and Fossil Species of Comptonia. The American Naturalist. Vol. 40, No. 475, pp. 485-524.

Darlington, Emlen. 1948. Notes on some North American Lepidoptera reared on Sweet Fern (Compontia as-plenifolia Linnaeus) with Description of new species. Transactions of the American Entomological Society (1890-). Vol. 74, No. 3-4, pp. 173-185.

Liag, X., Wilde, V., Ferguon, D., Kvacek, Z, Ablaev, A., Wang, Y., and Li, C. 2010. Comptonia naumannii(Myricaceae) from the early Miocene of Weichang, China, and the paleobiogeographical implication of the genus. Re-view of Paleobotany and Palynology. Vol. 163, p. 52-63.

Medley, Max and Eugene Wofford. 1980. Thuja occidentalis L. and other noteworthy collections from the BigSouth Fork of the Cumberland River in McCreary County, Kentucky. Castanea. Vol. 45, No. 3, pp. 213-215.

Natureserve Explorer, 2010.http://www.natureserve.org/explorer/servlet/NatureServe?searchSciOrCommonName=comptonia&x=7&y=7

Wilkins, Gary, Delcourt, Paul, Delcourt, Hazel, Harrison, Frederick, and Turner, Manson. 1991. Paleoecologyof central Kentucky sicne the last glacial maximum. Quaternary Research. Vol. 36, Issue 2.

Virginia Tech Woody Database http://www.dendro.cnre.vt.edu/dendrology/syllabus2/factsheet.cfm?ID=869

Zomlefer, W. 1994. Guide to Flowering Plant Families. University of NC Press, Chapel Hill.

Wildflower Weekend 2022 – Registration Has Closed

The schedule is set and registration is now open for our first, in-person Wildflower Weekend since 2019. Wildflower Weekend, April 8th-10th, at Natural Bridge State Resort Park, will be a hybrid of in-person and online activities. Throughout the week prior to Wildflower Weekend, we will be hosting an online, week-long BotanyBlitz on iNaturalist from April 2nd-9th. To kick off the BotanyBlitz week there will be several iNaturalist Tutorial Hikes around the state on April 1st & 2nd.

It will be great to return to our roots at Natural Bridge State Resort Park with an in-person Wildflower Weekend. However, with COVID-19 still a concern and to reduce the crowds of people in the lobby of the Hemlock Lodge, registration for the weekend and the walks will be done online.

KNPS will still have staffed tables in the lobby of the Hemlock Lodge where you can meet old and new native plant friends, see the items that will be raffled off on Saturday night, purchase raffle tickets, and purchase some other native plant related items.

This event is open to the public and kid-friendly. Pre-registration is required for the event and the pre-registration form can be found on our website: Wildflower Weekend 2022 Registration. Admission is $10 for adults, $3 for ages 13-17, and free for ages 12 & under. All walks will meet at the entrance to the Hemlock lodge at Natural Bridge State Resort Park. State parks require masks when indoors.


Schedule of Events

Click here to download the full schedule in PDF format.

Friday, April 8th – Afternoon Walks

1:00 PM Wildflower & Ecology Walk, Rock Bridge Loop Trail: 1.25 mile loop, moderately difficult walk. Join KY Nature Preserves botanists Heidi Braunreiter & Tony Romano on a trail that descends into a deep ravine with towering old-growth hemlock trees and a dense rhododendron understory. Scenic views of Creation Falls and Rock Bridge.

1:00 PM Woody Plants Walk, Boardwalk: easy, accessible walk. Join U.S. Forest Service botanist David Taylor and EKU graduate Ted Brancheau around the Hemlock Lodge and Woodland Center to learn about trees and shrubs.

2:30 PM Wildflower Walk, Original Trail:1-2 miles, moderately difficult walk.Walk with state park naturalist Samantha Evans and KY Nature Preserves botanist Rachel Cook to see what is blooming along the Original Trail, which leads up to the Natural Bridge Arch.

2:30 PM Lichen Walk, Rush Ridge Trail: 1-2 miles, easy walk. Join KY Nature Preserves lichenologist Kendall McDonald and botanist Devin Rodgers to learn about the anatomy, ecology, and reproduction of lichens along this flat ridgetop in the Red River Gorge. If you have a hands lens (aka jewelers loup) or magnifying lens handy, bring along for better viewing of these small organisms.

Friday, April 8thMembers & Friends Campfire Social

7:30pm Members & Friends Social, Natural Bridge SRP Group Campsite
Join us around the fire pit to gather with fellow wildflower enthusiasts. Meet the KNPS board members & officers. Bring your own camp chairs. No alcohol allowed per state park. S’mores fixings will be provided!

Saturday, April 9th – Morning Walks

8:30 AM Bryophyte Walk, Boardwalk: easy, accessible walk. Walk with U.S. Forest Service botanist David Taylor around the Hemlock Lodge to learn about these interesting seedless plants including mosses, liverworts, and hornworts that have considerable diversity in form and ecology.

8:30 AM Wildflowers & Salamanders Walk, Suspension Bridge Trail: 1-2 miles, easy to moderately difficult walk. Join KY Nature Preserves ecologist Martina Hines, UK-LFUCG Arboretum curator Jess Slade, and botanist Steele McFadden to learn about wildflowers along this botanically diverse trail. Also, take a stop at the creek to look for salamanders!

9:00 AM Natural History Walk, Rock Bridge Trail: 1.25 mile loop, moderately difficult walk. Walk with David Kuehner, senior biologist James Kiser from Stantec Consulting, and KY Nature Preserves botanist Vanessa Voelker to learn about wildflowers, ferns, herps, and mosses on a trail that descends into a deep ravine with towering old-growth hemlock trees and a dense rhododendron understory. Scenic views of Creation Falls and Rock Bridge.

10:00 AM Naturalist Walk with a Focus on Wildflowers, The Wilds Trail: 1-2 miles, easy to moderately difficult walk. Join authors Dan & Judy Dourson on a walk through Punkin Hollow to look at all things nature. For a great plant guide of the area, check out their book “Wildflowers and Ferns of Red River Gorge and the Greater Red River Basin.”

10:00 AM Search for Sweet Pinesap, Gray’s Arch Trail: 1-2 miles, easy to moderately difficult walk.Join KY Nature Preserves Botanist Tara Littlefield and her daughter Estella on a search for the rare and elusive sweet pinesap, aka pygmy pipes (Monotropsis odorata). Wildflowers, shrubs, trees, and general ecology will also be discussed.

Saturday, April 9th – Afternoon Walks

1:00 PM ¡Despierta, Bosque! Un paseo primavera de polinizadores; 1-2 millas, caminata fácil a moderadamente difícil. Venga al bosque para una caminata bilingüe en español y ingles para aprender sobre las flores de la primavera y sus polinizadores, durante el tiempo del año cuando el bosque esta despertando del invierno. Las familias y la gente de todas las edades están bienvenidos. La Dra. Valerie Peters, quien estudia las polinizadores de KY y en Costa Rica, seria encargada de dirigir la caminata en español. La Dra. Jennifer Koslow, una ecóloga que estudia plantas en KY, estaría co-líder de la caminata, en Spanglish.

Wake up, Woods! A spring pollinator walk, Rock Garden Trail; 1-2 miles, easy to moderately difficult walk. Come take a bilingual (Spanish and English) walk in the woods to learn about spring wildflowers and their pollinators as the forest wakes up from its winter slumber. Families and people of all ages welcome. Dr. Valerie Peters, who studies pollinators in Kentucky and Costa Rica, will lead the walk in Spanish, while Dr. Jennifer Koslow, a plant ecologist who works in Kentucky, will assist in Spanglish.

1:30 PM Wildflower Walk, Whittleton Branch Trail: 1-2 miles, easy walk. Join U.S. Forest Service botanist David Taylor, KY Nature Preserves botanist Rachel Cook, and David Kuehner along this botanically diverse trail north of Whittleton Campground to see a dazzling display of spring ephemerals!

2:00 PM Natural History Walk, Rock Garden Trail: 1-2 miles, easy to moderately difficult walk. Walk with retired Indiana heritage botanist Mike Homoya, senior biologist James Kiser from Stantec Consulting, and KY Nature Preserves botanist Heidi Braunreiter to learn about wildflowers, ferns, herps, and mosses on the forested slope above the Hemlock Lodge.

2:30 PM Plant Identification 101 & Intro to iNaturalist Workshop, Woodland Center & Boardwalk: easy, accessible. Join University of Cambridge graduate student Nick Koenig to learn how to use the smartphone app iNaturalist to identify unknown plants, as well as how to identify plants using a key. Please bring a copy of Plant Life of Kentucky (if possible) and have iNaturalist downloaded onto your phone prior to this workshop. However, neither are mandatory to join, teaming up on a key and/or phone is encouraged!

Saturday Evening Talks at the Woodland Center

Masks are required indoors per state park guidelines. Chairs will be spaced out as a Covid-19 precaution. Books by author Mike Homoya will be available for purchase during this event.

6:00 Welcome/Introductions, Tara Littlefield & Heidi Braunreiter

6:15 Membership Business Meeting, Jeff Nelson

6:30 Announcement of 2022 KNPS Grant Recipients, David Taylor

6:45 iNaturalist BotanyBlitz Results, Rachel Cook

6:55 Lilley Cornett Woods Revisited: A Half-Century of Overstory Change in an Old Growth Forest, Ted Brancheau, former EKU graduate student.

7:15 An Exploration into the Funky Fern World, Nick Koenig, graduate student at The University of Cambridge. The naming of fern species is a complicated process that has interesting histories. Nick will explore the ways in which taxonomists have gone about naming fern species, ongoing research investigating triplets of ferns, and how hybridization has led to interesting morphological relationships.

7:35 Rare Plants and Natural Communities along the Ohio River, from Cincinnati to the Mississippi River, Mike Homoya is a recently retired botanist and plant ecologist who worked for the Indiana Department of Natural Resources Natural Heritage Program since 1982. He discovered, inventoried, and assessed natural communities and surveyed for rare species. He shared his knowledge, experience, and enthusiasm about plants by authoring several books, teaching at the collegiate level, and serving as president of professional science associations.

8:35 Raffle Drawing

9:00 PM Nighttime Salamander Walk to Natural Bridge Cave. Join Senior Biologist James Kiser from Stantec Consulting to search for salamanders at the Natural Bridge Cave. Bring a headlamp or flashlight

Kick-off BotanyBlitz 2022 with an inaturalist Tutorial Hike!

Have you ever struggled to identify plants seen on hikes, or wished for an expert’s opinion on identifying a wildflower? The iNaturalist platform and mobile app is a great tool for connecting nature enthusiasts and sharing knowledge, and is a social network used by both amateur naturalists and professional biologists around the world. The app uses AI technology to offer identification suggestions based on your photos, and other users can help determine if that ID is correct. Observations made on iNaturalist not only help you learn more about the natural world around you, they can be useful to ecological research, conservation efforts, and natural resource management.

Click on image to see full size

To educate the public about iNaturalist and to promote the KNPS Wildflower Week BotanyBlitz iNaturalist Project (April 2nd-April 9th), several tutorial hikes will be led by experienced iNaturalist users across the state. These hikes will be geared towards beginner iNaturalist users and will teach you how to make observations and navigate the app. Please make sure to download the iNaturalist app to your mobile phone and create an iNaturalist user account before attending the hike!

Friday, April 1st:

These hikes have their own separate registration. Follow the link or email the address at the end of the hike description to register.

4:00 PM EDT Taylor Fork Ecological Station, Richmond KY: Easy walk on grass trails. Kickoff the iNaturalist tutorial hikes and KNPS BotanyBlitz with Eastern Kentucky University Division of Natural Areas staff on a spring walk through this wildlife management area. Meet and Park at the Taylor Fork Ecological Station parking area (1 Hancock Taylor Ln, Richmond, KY 40475).

3:00 PM EDT  Raven Run Nature Sanctuary, Lexington KY: 1 miles, easy to moderate walk. Join staff of Raven Run and Floracliff nature sanctuaries for this hands-on demonstration using iNaturalist in the field at Raven Run. In addition to exploring the basics of iNaturalist, there will be information on the City Nature challenge. Park at the Raven Run parking lot and meet at the Raven Run Visitor’s center (3885 Raven Run Wy, Lexington, KY 40515).

Saturday, April 2nd:

10:00 AM EDT Ashland-The Henry Clay Estate, Lexington KY: 0.5 miles, easy walk. Join Office of Kentucky Nature Preserves Botanist, Heidi Braunreiter, on a walk through the mulched pathways of the Henry Clay Estate. Park in the Estate parking lot and meet at the Gingko Tree Café (120 Sycamore Rd, Lexington, KY 40502). For those interested, stick around after the walk to help pull wintercreeper surrounding the rare Running Buffalo Clover populations.

10:00 AM CDT Cedar Sink Trail, Mammoth Cave National Park, Park City KY: 2 miles, easy walk, out and back trail. Learn with Mammoth Cave naturalists Steve Kistler, Janet Kistler, and Carol Friedman on this trail with a wide variety of spring wildflowers and impressive rock formations. Park and meet at the Cedar Sink Trail Parking Lot (Park Boundary Rd, Brownsville, KY 42210).

10:00 AM EDT Eagle Scout Trail, Nancy KY: 2.8 miles, moderate walk, out and back trail. Walk with Tyler Adams, amateur naturalist, through a gently sloping trail along Lake Cumberland. Park and meet at the Eagle Scout Trailhead parking area (Cr-1493N, Nancy, KY 42544).

10:00 AM CDT Greenway Trail-Disc Golf Course, Stuart Nelson Park, Paducah KY: 0.5 miles easy walk. Join Kentucky Native Plant Society board member Jeff Nelson and OKNP volunteer Bob Dunlap on an easy hike around a beautiful park in heart of Paducah. Park in the parking lot and meet at the west end of the park, where the Greenway Trail enters the Disc Golf Course (175 Stuart Nelson Park Rd Paducah KY 42001).

8:00 AM CDT Hematite Lake Trail, Land Between the Lakes (LBL) National Recreation Area, Eddyville KY: 2.5 miles, easy walk, loop trail. Walk with Murray State graduate student Gage Barnes along the banks of Hematite Lake and see a mix of woodland and aquatic loving plant species. Meet and park at the Hematite Lake Trailhead (Forest Service Rd 176 Eddyville, KY 42038).

10:00 AM EDT Pine Creek Barrens Nature Preserve, Shepherdsville KY: 1.5 miles, easy loop trail. Join Kentucky Native Plant society member Alan Abbott on a spring barrens walk through the preserve, just a short drive from Louisville, KY. Meet and park in the Pine Creek Barrens parking area (1264 Pine Creek Trail, Shepherdsville, KY 40165).

10:00 AM EDT Sky Bridge Loop Trail, Red River Gorge, Pine Ridge KY: 1.3 miles, easy walk, loop trail. Take a walk with naturalist Barbara Graham on this forested arch trail where filmy fern is a star attraction and learn about fire-dependent ridge top plants. Park and meet at the Skybridge Parking area (end of Sky Bridge Rd, Pine Ridge, KY 41360).

10:00 AM EDT St. Anne Woods and Wetlands, Melbourne KY: 0.7 miles, easy walk, loop trail. Join Northern Kentucky University professor, Dr. Maggie Whitson, and Office of Kentucky Nature Preserves botanists Vanessa Voelker and Kendall McDonald, on this walk through the wetlands and floodplain of the Ohio River. Trails may be muddy, so choose footwear accordingly. Park and meet at the St. Anne Convent visitor parking lot (off Mary Ingles Hwy, Melbourne, KY 41059).

2:00 PM EDT Lilley Cornett Woods Appalachian Ecological Research Center, Hallie KY: Easy walk. Learn with Eastern Kentucky University Division of Natural Areas staff on a spring walk through one of Kentucky’s old growth forests as a part of LCW’s Wildflower Weekend. Meet and Park at the Lilley Cornett Woods Visitor Center (91 Lilley Cornett Branch, Hallie, Kentucky 4182).

10:00 AM & 1:00 PM EDT Red Maple and White Oak Trails, Louisville Nature Center, Louisville KY: Learn all about iNaturalist with Louisville Nature Center staff in this natural area without ever leaving the city. There will be 2 walks, limited to 10 participants per walk. Meet and park at the Louisville Nature center (3745 Illinois Ave, 40212). The walks will cost $15 for non-members of the Louisville Nature Center.

Become Part of BotanyBlitz 2022!

BotanyBlitz on iNaturalist – April 2nd – 9th

In 20 days, naturalists and botanizers across the Commonwealth of Kentucky will be participating in BotanyBlitz 2022, held in conjunction with Wildflower Weekend 2022. This is the second year we’ll be holding our week-long BotanyBlitz, which is an effort to document as many plant species as possible within Kentucky between April 2-9. As it was last year, the BotanyBlitz will be hosted on the community science website, iNaturalist, and participants will be using the iNaturalist mobile app and website to upload photos of budding and blooming plants they observe in local parks, state parks, wildlife sanctuaries, and nature preserves.

A BotanyBlitz is community-science event that focuses on finding and identifying as many plant species We encourage anyone interested to sign up for an iNaturalist account if you’re not already a user, and join the BotanyBlitz project (just click “Join” in the top right corner of the project page), and download the mobile app for iPhone or Android. But of course, you don’t need to wait till the BotanyBlitz to start making observations on iNaturalist, and wildflowers across Kentucky are already starting to show their stuff. Let’s take a look at how the wildflower situation is shaping up thus far.

In Kentucky on iNaturalist, the first three blooming native wildflowers this year were Spring Beauty (Claytonia virginica) and Purple Cress (Cardamine douglassii)!

In first place, a startlingly early Spring Beauty was spotted by @gage_barnes at the Hancock Biological Station the afternoon of New Year’s Eve, December 31. Although this observation technically occurred in 2021, we’re counting it as a 2022 sighting since it was made a mere 9 hours prior to the new year.

A New Year’s Eve Spring Beauty, perfectly happy to show up early to the party, observed by @gage_barnes

In second place, another Spring Beauty was again spotted at the Hancock Biological Station, this time on January 31 by @fhincks.

Another Spring Beauty in the chilly days of late January, observed by @fhinks

And in third place, the first Purple Cress observation of the year appeared a mere two weeks later on February 15 at Floracliff Nature Sanctuary in Lexington, observed by @ky2c2t.

Purple Cress finally making an appearance, observed by @ky2c2t

As the days continue to warm up, we’re seeing more obervations of both Spring Beauty and Purple Cress, as well as the aptly named Harbinger of Spring (Erigenia bulbosa), a hint of Snow Trillium (Trillium nivale), Hepaticas (Hepatica acutiloba and H. americana), Bluets (Houstonia pusilla and H. caerulea), and Virginia Saxifrage (Micranthes virginiensis), as well as a variety non-native (but still cute!) annual weeds. It’s just a matter of time before the rest of Kentucky’s spring wildflowers start to erupt out of the soil, so keep those observations coming and join us April 2-9 for a week of intensive wildflower-spotting!

2022 Kentucky Botanists Big Year project on iNaturalist

If you’re an iNaturalist user (or want to become one!) and a native plant fanatic, KNPS would like to invite you to join the fourth annual Kentucky Botanists Big Year project!

A Botanists Big Year is a personal challenge or a friendly competition to observe and identify as many plant species as possible in a single year. The rules for the challenge are simple:
1) Observations must be of a plant – native or non-native, vascular or non-vascular, everything in Kingdom Plantae counts!
2) Observations must occur within the Commonwealth of Kentucky
3) Observations must be between January 1 – December 31, 2022
4) Observations must reach “Research Grade” status (this is when at least 2/3 of identifiers reach a consensus on a species ID)

To join the project, simply log in or sign up to iNaturalist, then visit the Kentucky Botanists Big Year project page and click “Join” in the top right corner.

The top five participants in the categories of Most Species, Most Observations, and Most Identifications will win KNPS swag, as well as the glory of victory! Naturalists and enthusiasts of any skill level are encouraged to join up: Big Year projects are a fantastic way to document and remember interesting plants you saw, learn how to identify them, and connect with other naturalists in the state. We hope to see you and your observations out there!

Winter Creeper Pull at Ashland- The Henry Clay Estate

Join us April 2nd at 11am EDT as we pull winter-creeper from populations of running buffalo clover at Ashland, The Henry Clay Estate in Lexington following the iNaturalist tutorial hike. To learn more about running buffalo clover, click here. You do not need to partake in the iNaturalist tutorial hike to help pull winter creeper, but you are welcome to! Bring a knee pad and gardening gloves if you have them. We will meet next to the Gingko Cafe. If you wish to join in, please email Heidi Braunreiter, heidi.braunreiter@ky.gov.

The “Lost Crops”: Native Plants & Early Agriculture in KY

By Alicia Bosela, owner of Ironweed Native Plant Nursery

At the nursery, an inquisitive couple wanted native plants for their new cabin home: “We’d like plants that our grandmothers would’ve had.”  To their surprise, I asked, “Which grandmother?” meaning a couple generations ago or when most plants at hand were still native?

Ethnobotany is the study of the interrelations between people and plants in the past. Beginning in roughly 1000AD the three sisters: corn, beans, and squash were the primary crops used by indigenous people of North America. They reached the Midwest from Mexico and became the dominant crops. Before 1000AD, during the Woodland period, crops were also grown but they were developed from native plants. These native plants still exist today, though in wild form.

The Eastern Agricultural Complex (EAC) refers to a geographic area centered on the Mississippi River and encompassing all adjoining states. Kentucky is at the core of that geographic area. The EAC is one center of domestication in the pre-historic world in which domesticated native plants were largely abandoned in favor of corn, hence, “the lost crops.”

A handful of native plants were domesticated including little barley, village goosefoot, upright knotweed, marsh elder, and Carolina maygrass. Though special, these plants are not remotely ornamental. Interesting research is being done to understand many questions about their domestication and use. As a tie in, foragers and those interested in wild edibles might enjoy a detailed talk by Dr. Natalie Mueller of Cornell University. A few in the “local food” movement have begun to experiment with these plants in their dishes.

Perhaps these plants have value in Environmental Education, introducing an appreciation of early agriculture to folks, young and old. Might there be a use someday for these plants for those interested in sustainability? Regardless, the inquisitive couple who visited the nursery for native plants used by their grandmother have a colorful array of options and a marvelous starting point to explore on our natural heritage over an expanse of time.

Plants mention in this article

Little barley (Hordeum pusillum)

Village goosefoot (Chenopodium berlandieri)

Upright knotweed (Polygonum erectum)

Marsh elder (Iva annua)

Carolina maygrass (Phalaris caroliniana)


Alicia Bosela owns Ironweed Native Plant Nursery in Columbia Kentucky, a certified woman-owned business. Before opening her own nursery, she was the Assistant Director of Clay Hill Memorial Forest Environmental Education Center. You can contact her at www.ironweednursery.com.