We need everyone interested in plant conservation to rally together for the passage of the Recovering America’s Wildlife Act. With historic levels of funding and support from both sides of the aisle, this bipartisan bill is critical to protecting our nation’s plant life. This rally will feature leaders in plant conservation and give you an opportunity to take action to encourage your Members of Congress to vote YES on this historic bill. Bring your passion and excitement, because we need YOU to push Recovering America’s Wildlife Act over the finish line!
Special guest speakers from Atlanta and California Botanical Gardens, SE Plant Conservation Alliance, Eastern Band of Cherokee Indians, NatureServe, Center for Plant Conservation, Garden Club of America, Office of Kentucky Nature Preserves, & National Wildlife Federation will share the latest information and why we need your help!
The rally will occur November 13th, 2023 from 2-3pm EST. This is a virtual rally hosted on Zoom. Be sure to register here: Meeting Registration – Zoom
Alan Weakley and the Southeastern Flora Team are thrilled to announce the release of FloraQuest: Northern Tier, a new plant identification and discovery app covering more than 5,800 wildflowers, trees, shrubs, grasses, and other vascular plants occurring in the northern part of The Flora of the Southeastern United States (FSUS).
With easy-to-use graphic keys, advanced dichotomous keys, habitat descriptions, range maps, and 20,000 diagnostic photographs, FloraQuest: Northern Tier is the perfect companion for your botanical explorations. FloraQuest: Northern Tier doesn’t need an internet connection to run, so you can take it with you wherever you go in the field.
You can use FloraQuest to learn about and identify all plants occurring within the 12-state “northern tier” portion of the FSUS. The app allows you to filter the state and physiographic region in which you are botanizing, seeing only relevant results close to you. Do you struggle to remember complicated botanical terms? We’ve got you covered: click on a word you don’t know, and the definition will pop up in the app without you having to leave the page!
This app covers Kentucky, West Virginia, Virginia, Maryland, Washington (D.C.), Delaware, Pennsylvania, New Jersey, and parts of New York, Ohio, Indiana, and Illinois. In the coming years, our Flora team will be releasing additional apps for the remaining regions of the Southeastern Flora. Next up is North Carolina, South Carolina, and Georgia.
We remain committed to traditional floras and making flora data accessible: you can access the FSUS web app or download the latest PDF of the Flora of the Southeastern United States for free (donations optional) at ncbg.unc.edu/research/unc-herbarium/floras/.
June 20th-26th is National Pollinator Week, an annual internationally celebrated event to educate, support and celebrate all things pollinator conservation. As plant enthusiasts, we have an appreciation and respect for pollinators’ complex and fascinating relationship to plant reproduction. The most well-known pollinator is probably the Monarch Butterfly, which has been reared by school children for decades in lessons about the butterfly life cycle. The monarch has captured the wonder of the public with its spectacular migration, with millions of monarchs traveling up to 3,000 miles to central Mexico and the California coast to overwinter annually.
Unfortunately, since the mid-1990s, the eastern monarch population (accounting for 99% of all North American monarchs) has declined by approximately 85%. There are six major threats to monarchs that have caused this major decline: loss of breeding habitat, climate change, loss of overwintering habitat, natural enemies, pesticides, and general anthropogenic factors. In response to the population loss, monarchs are currently on the candidate waiting list for Endangered Species Act protection. The U.S. Fish and Wildlife Service has a 2024 deadline to propose them for protection as threatened.
Mexico’s Commission of Natural Resources and WWF Mexico conduct annual counts of monarchs in the overwintering locations, oyamel fir forests of high-elevation mountaintops in central Mexico. To truly count millions of monarchs would be a monumental task, therefore the population is reported as an estimation of area of monarch populated overwintering habitat. The most recent count was reported as 7 acres (2.84 hectare) of occupied overwinter habitat, which is well below the 14.8 acres (6 hectare) threshold scientists say is needed to keep the monarch out of the risk of extinction in North America.
In the United States, monarchs have lost up to 165 million acres of breeding habitat due to herbicide use and anthropogenic development. Monarchs rely on milkweed species (Asclepias sp.) as a host for laying eggs and as food when they are caterpillars. Historically, milkweed species were much more widespread and abundant. Between 1999 and 2012, milkweed numbers across the midwest declined by an estimated 64% due to threats such as habitat loss, anthropogenic development, and herbicide use.
One of the easiest things to do to help monarch populations is to provide breeding habitat by planting native milkweeds. Kentucky has 13 native milkweeds, and several species are available at native plant nurseries across the state.
List of Kentucky Resources for Purchasing Milkweed
Clasping Milkweed is found in sandhills, barrens, woodlands, and dry, sandy or gravelly soils. Its common name refers to the way the opposite leaf bases wrap around or “clasp” the stem. The Clasping Milkweed is an upright milkweed with an unbranched stem, with a single rounded cluster of pink purple flowers at the top. The flowers have a sweet fragrance similar to that of roses and cloves. This species is uncommon throughout Kentucky.
Asclepias exaltata, Poke Milkweed
The Poke Milkweed can be found in moist forests, slopes and forest margins. It has petioled, non-linear, opposite leaves that occur along erect to ascending stems. The flower umbels are relatively open and droop from long pedicels. Flowers of the Poke Milkweed are bi-colored, displaying a lovely composition of green to pale purple petals and white to light pink hoods and column. This species is uncommon in Kentucky, occurring in the Appalachian Plateau and Interior Low Plateau.
The Prairie Milkweed is a State Threatened milkweed species that occurs in limestone glades and prairies. It has erect to ascending stems that can range from glabrous to densely pubescent, with widely spreading to ascending alternate, linear leaves. Flowers develop from the axils of the middle to upper leaves, occurring in dense globoid umbels of white to green flowers.
Asclepias incarnata var. incarnata, Swamp Milkweed
Swamp Milkweed occurs commonly across Kentucky in swamps, marshes, and other wet areas, especially over limestones and calcareous shale. The stems are erect to ascending, with course, petiolate leafs in an opposite arrangement. The flowers occur in flat umbels atop the stem, with vibrant pink flowers that have a fragrance similar to cinnamon.
Aquatic Milkweed occurs commonly in the Coastal Plain of Kentucky, occurring in cypress-gum swamps, bottomland hardwood forests, and marshes. The stems are erect, with short petioled leaves in an opposite arrangement. Flowers occur in flat umbels atop the stem or in the axils, with white to pale pink coloration.
Asclepias purpurascens, Purple Milkweed (State Special Concern)
Purple Milkweed is a State Special Concern milkweed that occurs throughout Kentucky in openings in moist bottomlands and swamp forests, prairies and woodlands. The steams are erect, with large opposite leaves up to 6 inches long. Deep purple flowers occur in relatively dense rounded umbels, with up to 6 umbels occurring terminally on the stem.
Asclepias quadrifolia, Four-leaf Milkweed
Four-leaf Milkweed occurs commonly in the Interior Low Plateau and Appalachian Plateau of Kentucky in moist forest and forest margins. This species has erect stems with both mid-stem whorled leaves and opposite leaves. The small pink and white flowers occur in umbels atop the stem, with relatively few flowers per umbel.
Asclepias syriaca, Common Milkweed
Common Milkweed, as its name implies, is common throughout Kentucky in pastures, roadsides and disturbed areas. This tall milkweed has stout erect stems, with large sessile leaves in an opposite arrangement. The flowers occur in large dense umbels of pink to purple flowers, with an attractive fragrance.
Butterflyweed is a species of milkweed that occurs across Kentucky in woodland margins, roadsides and pastures. This species can be easily identified by its vibrant orange flowers, which occur in terminal clusters. The stems are erect to ascending, with sessile to short petiolate leaves in an opposite arrangement. Unlike other milkweeds, Butterflyweed does not have milky sap.
Redring Milkweed is an uncommon species that occurs across Kentucky in upland forests and woodlands. This species has a single narrow stem, with petiolate leaves in an opposite arrangement. The flowers occur in spherical umbels, with white flowers with a red ring around the middle, giving it it’s common name.
The Whorled Milkweed is an uncommon milkweed that occurs across Kentucky in barrens, thin soils of rock outcrops, open woodlands, pine flatwoods, and road and powerline right-of-ways. This species has erect stems with sessile, linear leafs in a whorled arrangement. The fragrant greenish white flowers occur in umbellate cymes in the upper leaf axils and stem ends.
The Green Milkweed is an uncommon milkweed that occurs across Kentucky in open woodlands, woodland edges, barrens, glades, and disturbed areas. This species has an erect stem with elliptical leaves in an opposite arrangement. Pale green flower clusters occur in the upper leaf axils of the plant.
Asclepias viridis, Spider Milkweed
Spider Milkweed occurs across Kentucky and occurs in prairies, dry woodlands, calcareous hammocks, and pine rocklands. The stems are ascending, with course textured leaves with short petioles in alternate to sub-opposite arrangement. The large flowers are green, purple and white, without horns, occurring in a solitary umbel atop the stem.
By Tony Romano, OKNP botanist/Conservation Coordinator
Grasslands are an increasingly rare plant community type in Kentucky and the southeastern United States. Kentucky has often been depicted as a continuous forest, but we now understand that grasslands (defined broadly here to include prairie, savanna, barrens, and woodland communities) were once much more widespread throughout the state. Estimates of pre-settlement grassland communities in Kentucky range from 2.5 to 3 million acres. These grasslands are now nearly gone, with less than 1 percent of natural prairie and barrens remaining today in Kentucky (Abernathy et al. 2010). Much of this loss can be attributed to direct conversion of habitat through agricultural and urban development. The cessation of historical disturbances such as fire and grazing by large herds of animals has allowed the remaining grasslands to be degraded and slowly converted into forests by woody succession.
Figure 5: Ecologist and writer Aldo Leopold. Courtesy of the Aldo Leopold Foundation and University of Wisconsin-Madison Archives
Aldo Leopold, a name that looms large in ecology, recognized over 70 years ago that roadsides were some of the last bastions of the mid-west tallgrass prairie in Wisconsin and Illinois. Even in Leopold’s time, most of the tallgrass prairie in the mid-west was already lost to the same processes that have diminished Kentucky’s grasslands. A Sand County Almanac, a collection of Leopold’s essays published posthumously in 1949, is a seminal work of ecological and philosophical writing that continues to influence the thinking of ecologists and conservationists to this day. While re-reading Almanac this past winter, I was struck by two essays that had direct bearing on the topic of this article. In Prairie Birthday, Leopold describes a remnant prairie tucked in the corner of a cemetery which borders a highway. He describes a stand of compass plant (Silphium laciniatum), perhaps the last population in that county, that blooms each July in that cemetery. Sadly, the fence separating the prairie from the road is eventually removed and the Silphium is mowed. Leopold laments that “this is one little episode in the funeral of the native flora, which in turn is one episode in the funeral of the floras of the world.”
Recognizing that things don’t need to be this way, Leopold continues “…every highway is bordered by an idle strip as long as it is; keep cow, plow, and mower out of these idle spots, and the full native flora … could be part of the normal environment of every citizen.”
In a later essay, Illinois Bus Ride, Leopold describes the vestiges of native plants and animals that he observes out the window of a bus traveling through Illinois. He notes that “In the narrow thread of sod between the shaved banks and toppling fences grow the relics of what once was Illinois: the prairie.” The foresight of these essays, that roadside remnants would become vital for grassland conservation, is truly astounding.
Figure 6: Newly discovered roadside population of barrens silky aster (Symphyotrichum pratense)(G4/S3).
Figure 7: Prairie dock (Silphium terebinthinaceum) along a roadside in Meade County.
In recent years, roadsides and utility right-of-ways have been increasingly recognized by ecologists and land managers for their potential conservation value. Research has shown that roadsides can provide important habitat for many pollinating insects, including at-risk species like the monarch butterfly (Hopwood 2008). Because they are maintained in an open, grass dominated state, roadsides can also contain remnants of native grassland communities that support diverse and sometimes rare plant species. Importantly, research shows that intact, high-quality, grasslands provide some of the best habitat for pollinators due to the abundance and diversity of plant species that occur in these communities (Ries et al. 2001). In other words, if we can protect high-quality roadside grasslands, we will also be providing vital habitat to insect populations. Nationwide, approximately 10 million acres of roadside right-of-ways are managed by state transportation departments (Forman et al. 2003). If successfully managed for native plant species, ten million acres is a tremendous amount of potential pollinator and grassland habitat.
Fortunately, Leopold’s old idea has gained traction. At the federal level, an important 2014 Presidential Memorandum addressed concerns over the monarch butterfly and declining populations of important pollinating insects. The memo directed federal agencies to increase or improve pollinator habitat nationwide (White House 2014). The memo additionally directed the Federal Department of Transportation to work with state departments of transportation to promote pollinator friendly practices. In accordance with this memo, the Federal Highway Administration researched and published several documents outlining best management practices (BMPs) and restoration techniques for managing roadside right-of-ways for native plants and pollinating insects (U.S. Department of Transportation, 2016).
Figure 8: OKNP’s progress so far on roadside pollinator habitat and grassland surveys
Figure 9: Appalachian rosinweed (Silphium wasiotense) a globally rare plant (G3/S that thrives on roadsides.
In the Commonwealth, the Office of Kentucky Nature Preserves (OKNP) and the Kentucky Transportation Cabinet (KYTC) have partnered on a 5-year project to survey all of the state maintained roads for high-quality pollinator and grassland habitat. KYTC maintains approximately 31,000 miles of roadside right-of-way which includes the interstates, US highways, and all state highways. Surveys began in 2020, and so far our botanists have surveyed over 13,000 miles of road in over 40 counties. We have evaluated over 200 sites for pollinator habitat and have identified over 30 high-quality grasslands. We also identified over 20 additional sites that do not necessarily meet high-quality grassland criteria, but still provide important habitat for certain rare plant species like the Appalachian Rosinweed (Silphium wasiotense). This Silphium is a globally rare species (G3/S3), endemic to Kentucky and Tennessee, that thrives on forest edges along roads in eastern Kentucky. In line with the goals of the Kentucky Pollinator Protection Plan (Kentucky Department of Agriculture 2019), once important sites are identified, we are working with KYTC to modify existing management to support and benefit these grassland communities and rare plant habitats. We believe this work will help preserve the full native flora of Kentucky.
Now, there is a second old idea in Leopold’s essays that I would like to briefly touch on if the reader will permit it. In addition to his concern over the retreating prairie, Leopold was once again ahead of his time when he observed what we would now call “plant blindness” in his contemporaries. In Illinois Bus Ride he comments that “No one in the bus sees these relics. A worried farmer … looks blankly at the lupines, lespedezas, or Baptisias … He does not distinguish them from the parvenu [exotic] quackgrass in which they grow.” Leopold continues “Were I to ask him the name of that white spike of pea-like flowers hugging the fence, he would shake his head. A weed, likely.” In Prairie Birthday he states the issue directly “We grieve only for what we know. The erasure of Silphium from western Dane County is no cause for grief if one knows it only as a name in a botany book.”
Figure 10: “…that white spike of pea-like flowers” isn’t a weed, its white wild indigo (Baptisia leucantha)!
Figure 11: Newly discovered roadside population of round-head bush clover (Lespedeza capitata) (G5/S3).
Figure 12: Tony Romano, OKNP botanist, at a newly found and highly diverse roadside prairie.
Coined in 1998 by botanists Elisabeth Schussler and James Wandersee the term “plant blindness” refers to “the inability to see or notice the plants in one’s own environment” (Allen 2003). Plant blindness among the general public diminishes peoples understanding, interest, and connection to nature. Left untreated, plant blindness can result in declines in funding for plant biology education, research, and conservation initiatives. One of the primary missions of KNPS is to educate the public about plants and alleviate plant blindness. It is my hope that OKNP’s roadside habitat project will contribute to the visibility of native plants and spark interest in learning about and conserving our native flora.
One way that readers could help our efforts is to take a look at your local backroads. OKNP’s roadside survey project is limited to state maintained roads and generally excludes county and local roads. Please join our inaturalist project and help us document important habitat by adding your observations of roadside native plants to the project at https://www.inaturalist.org/projects/kentucky-roadside-native-plants.
References:
Abernathy, G., D. White, E. L. Laudermilk, and M. Evans, editors. 2010. Kentucky’s Natural Heritage: An Illustrated Guide to Biodiversity. University Press of Kentucky, Lexington, KY., USA.
Allen, W. 2003. Plant Blindness. BioScience. 53(10).
Forman, R. T. T., D. Sperling, J.A. Bissonette, A. P. Clevenger, C.D. Cutshall, V.H. Dale, L. Fahrig, R. France, C. R. Goldman, K. Heanue, J.A. Jones, F.J. Swanson, T. Turrentine, and T.C. Winter. 2003. Road Ecology: Science and Solutions. Washington, D.C.: Island Press.
Hopwood, J. 2008. The contribution of roadside grassland restorations to native bee conservation. Biological Conservation. 141.
Kentucky Department of Agriculture. 2019. Kentucky Pollinator Protection Plan. Available at: https://www.kyagr.com/statevet/documents/OSV_Bee_KY-Pollinator-Pro-Plan.pdf. Accessed: October 2021.
Ries, L., Debinski, D.M., and M.L. Wieland. 2001. Conservation value of roadside prairie restoration to butterfly communities. Conservation Biology. 15(2).
U.S. Department of Transportation, Federal Highway Administration. 2016. Pollinators and Roadsides: Best Management Practices for Managers and Decision Makers. Available: https://www.environment.fhwa.dot.gov/env_topics/ecosystems/Pollinators_Roadsides/BMPs_pollinators_roadsides.pdf. Accessed: October 2021.
White House Office of Press Secretary. 2014. “2014 Pollinator Presidential Memo.” Available: https://www.nps.gov/subjects/pollinators/presidential-memo.htm. Accessed: October 2021.