Kentucky Plant Conservation Alliance

“Collaborative conservation of rare plants and natural communities in Kentucky and the greater region”

What is the Kentucky Plant Conservation Alliance (KYPCA)?   

The Kentucky Plant Conservation Alliance (KYPCA) is a public private partnership of state and federal agencies, land managers, academic researchers, botanical gardens, conservation horticulturists, non-profits, conservation groups, private sector/consultants, community scientists, and volunteers committed to protecting native plants and natural communities of conservation concern with a central goal of preventing plant extinctions.  The Office of Kentucky Nature Preserves and Kentucky Native Plant Society both recognized the need for a greater focus on rare plants and formed this alliance in 2016 in order to facilitate collaboration amongst existing conservation groups in the state by providing a framework to bring together the botanical community on focused priority plant conservation projects across the commonwealth.   Priority projects are coordinated primarily by botanists and conservation staff at the Office of Kentucky Nature Preserves (OKNP) and collaborative meetings/field days/work days, outreach and volunteer building has been organized primarily by the Kentucky Native Plant Society (KNPS).  The KYPCA is also linked with national, regional, and state alliance initiatives like the Georgia Plant Conservation Alliance that help us learn how to most effectively build plant conservation in Kentucky. We seek to prevent plant extinctions and preserve natural heritage for future generations by better leveraging resources of existing partnerships as well as building new partnerships to expand the collective capability of plant conservation in Kentucky.

Why do we need the KYPCA?

“Plants are the foundation of most life on Earth”

Kentucky is a very diverse state floristically, from the Cumberland Mountains in the East to the swamps of the coastal plain region in the west.  The diversity is due to the topography and position on the landscape, the variety of geology and soils, the lack of recent glaciation and the history of natural disturbances such as fire and grazing.  However, the landscape of Kentucky has changed dramatically since European settlement.  Development and agriculture resulted in the dramatic loss of our old growth forests in the east, the grasslands of the interior plateau and the wetlands of the coastal plain.  Over 2000 native plants have been documented in Kentucky. Unfortunately approximately 20% of our plants are rare, threatened or endangered. Kentucky has 11 federally listed species and an additional 40 or so plants are globally rare and declining.  But there are still plant diversity hotspots scattered in remnant natural areas across the state.  65% of rare plants and 80% of rare natural communities in Kentucky are associated with grasslands, barrens or woodlands that need some level of disturbance (fire, browsing) or edaphic control (rock outcrops) to persist and all of our rare plants and communities need invasive species management.  Only a handful of professional staff are able to devote their time to monitoring and managing these rare plants due to limited resources.  In order to more effectively conserve these rare species and communities, we need to work collaboratively with partners and volunteers across the state to increase in situ and ex situ conservation of our rarest plants.

What kinds of projects does the KYPCA work on?

We work with our partners to prevent plant extinction and extirpation through in situ and ex situ conservation projects with a central goal of preventing local extinctions.  Projects activities can include surveys, monitoring, direct management (invasive species removal/prescribed fire), restoration, seed banking, propagation, introductions, research and outreach.   Projects are focused on rare plants that are in most need of immediate conservation action in order to prevent extinction from the state.  The rare plant priority list was created by Kentucky Rare Plant Committee, continually updated, and is also the proposed list to add to the Kentucky State Wildlife Action Plan in the next few years.    Plants are prioritized by rarity, lack of site protection or appropriate management, and other threats. Since rare plants are a part of larger natural communities, management and restoration of natural areas and partnerships with land managers is key to all projects.  Some recent projects include rare plant propagation, native clover conservation, white haired goldenrod community science monitoring and management, roadside rare plant surveys, wood lily and Pine Barrens restoration, rare plant listing and prioritization working groups, and working with partners to add plants to Kentucky’s state wildlife action plan.

How does the KYPCA connect?

The KYPCA connects to partners by coordinating rare plant and community focused meetings and symposiums; coordinating workshops and field work days; providing updates to the KNPS monthly Ladyslipper newsletter and the OKNP quarterly newsletter; through OKNP, KYPCA, and KNPS social media pages; and through our websites www.kypca.knps.org and www.naturepreserves.ky.gov.

How to get involved?

If you would like to get involved with these efforts, contact us at KYPCA@knps.org and formally join our alliance!   Please join the Kentucky Native Plant Society and sign up for the KNPS and OKNP newsletters to find out about volunteer opportunities and updates from recent projects.  The KNPS is offering small grants to directly help with the KYPCA efforts such as rare plant propagation, and inventory/monitoring of natural areas. Please contact us if you are interested in applying for a grant.   If you are an organization and are interested in formally joining, please send us your partnership logo and website info so we can add you to our partner page.  Projects that we need particular help with include volunteer coordination, conservation horticulture projects, as well as monitoring and management projects on public and private lands.    

Native clover conservation in the Bluegrass: an agronomic perspective

Jonathan O.C. Kubesch, University of Tennessee

Clovers are an odd group of plants caught between agriculture and agronomy, especially in the Bluegrass. Agronomists and cattlemen find clovers important for their nitrogen contribution and nutritive value to livestock. Horse owners fear clover for the fungal pathogen behind slobbers. Wildlife managers use them for food plots. Of the roadside clovers, most came to Kentucky with settlers (Ball et al., 2015; Bryson and DeFelice, 2009). Those red and white clovers came with the tall fescue and Kentucky bluegrass. These species play an important role in Kentucky agriculture; however, the horse parks and cattle farms have replaced the natural ecosystems in the state (Noss, 2013; Campbell, 2014; Campbell, 2010).

In addition to these introduced species, Kentucky has three prominent native clovers: annual buffalo clover, running buffalo clover, and Kentucky clover (Vincent, 2001). Although collections of the native clovers have been made across Kentucky, it is really very uncommon to find these populations unless one knows where someone else has previously found it. It is unlikely that the reader will find these species in the local park or native area.

Annual buffalo clover (Trifolium reflexum), is spread throughout most of the eastern United States. The beautiful blooms have led to its potential as a horticultural species (Quesenberry et al., 2003). Of the native clovers, the genetics of the flowering in annual buffalo clover have been the most explored: red, white, and pink flowers (Quesenberry et al., 2003). At one point, it was favored over naturalized white clover in unimproved grazing lands (Killebrew, 1898).

Running buffalo clover (Trifolium stoloniferum) is a perennial species limited to the Ohio River Valley and Missouri. Plants spread on thick runners like strawberries. The species was investigated as a potential forage in the 1990s, and has been the subject of interest for herbivory dynamics in the eastern United States. The thick seed coat requires scarification in order for the seed to germinate (Kubesch, 2018; Sustar, 2017). Hoof action has been proposed as a driver in the ecology of the species, but a general disturbance regime seems necessary for the species to persist in the landscape (Kubesch, 2018). With some sandpaper and a few hours of free time, seed can be scarified. Running buffalo clover grows readily in the greenhouse.

Running buffalo clover in the greenhouse. Photo credit: Jonathan Kubesch
Continue reading Native clover conservation in the Bluegrass: an agronomic perspective

Ashland Clean-Up Day: Protecting Running Buffalo Clover

Ashland, The Henry Clay Estate in Lexington is having a clean-up day on Saturday, November 2nd from 9:00am-12:00pm. Join Heidi Braunreiter with Kentucky Nature Preserves to help pull winter-creeper from populations of running buffalo clover populations on the estate. Ashland will be providing coffee and krispy kreme donuts in the morning and Donato’s pizza at noon. Bring gloves, water, knee pads, and pruners if you have them.

Federally-endangered plant running buffalo clover

Running buffalo clover (Trifolium stoloniferum) is a federally-endangered plant that requires periodic disturbance and a partially shaded canopy. Historically, it occurred along bison trails but today it is most commonly found along forested stream terraces, trails, and lawns of old homesteads. Running buffalo clover was found at Ashland in 1989 as part of Kentucky Nature Preserves effort to survey lawns of historical homes to locate more populations. The Ashland staff have utilized mowing as a tool to create disturbance and benefit the growth of their running buffalo clover. However, an invasive vine called winter-creeper has become established in many of the running buffalo clover patches at the estate. Winter-creeper (Euonymus fortunei) is an aggresive weed that can out-compete native flora. We will be pulling winter-creeper around the patches of running buffalo clover in an effort to keep it from taking over.