Restoration Techniques, & Commonly Found Prairie Plants

Lake Katherine Nature Center & Botanic Garden

Introduction Midwestern Ecosystems Invasive Species Control Techniques Commonly Found Prairie Species Rare Prairie Species

Perspective Restoration Reconstruction Rehabilitation Tallgrass Prairie-intermixed with

Savanna and Woodland. 10,000 years in the making Through fire both natural and lit Modern threats

Midwestern Ecosystems Tallgrass Prairie (less than1% left in Illinois) Oak Savanna Oak Woodland Forest Wetlands The prairie forest continuum Wetland and upland part of this continuum

Tall Grass Prairie Dominant Grasses

Big Bluestem Switch Grass Indian Grass

Dominant Forbs Compass Plant Prairie Dock Cone Flowers

Fire Dependency Essential to keeping the prairies open

Oak Savanna Prairie Wood Interface Bur Oaks the dominant tree Fire Dependent Canopy level approx 10%

Oak Woodland Canopy cover between 30% and 50% More shade tolerant species Presence of fire in open woodlands prevents

ashes and sugar maples taking over

Forest Traditionally located where fires are

restricted along river edges and moraines More maple dominant then oak dominant Fires are more rare Forests traditionally somewhat rare in the

native landscape of Illinois Encroachment of the Eastern Forests Forest canopy cover typically 80% plus

Wetlands Marsh Sedge Meadow Wet Prairie Bog Fen Flat wood Most are fire dependent

Invasive Species

What is an invasive species?

Invasive Species

“non indigenous species or strains that become established in natural plant communities and wild areas and replace native vegetation.”

The Invasive Plant Association of Wisconsin

TeaselDipsacus spp •Two species

•Common (Purple flowered)•Cut Leaved (White Flowers)•Biennial•Introduced for combing wool•Grows as basal rosette for one year•Flowers, produces seed and dies•Seed can remain viable for several years

Reed Canary Grass (Phalaris arundinacea)

•Planted for forage and erosion control since 1800s•Can invade most types of wetlands•Seeds germinate immediately at maturation•Spread by seed and rhizomes

Buckthorn (Rhamnus cathartica, frangula)

Orange bark Oval leaves

Thorn and the buck

•Very prolific

•Seed spread via birds

•Shades out understory

•Forms monocultures

Purple Loosestrife(Lythrum salicaria)

•Planted originally as a n ornamental

•Forms dense stand in wetland areas

•Chokes out waterways

•Crowds out natives

•No natural predators

•80,000 stalks per acre have been recorded

Honeysuckle (Lonicera spp)

•Four species of honeysuckle excluding hybrids

•Shade out understory

•Readily spread by birds eating berries

•Cut stump will resprout

Flowering Winter Bark

Garlic Mustard (Allaria petiolata)

Rosette colonies Maturing plant

Introduced by early settlers for use in cooking and medicineBiennial spreads into disturbed area and high quality areas

Restoration Techniques

Burn Notice Fires are the dominant driving force

behind the prairie /savanna/woodland complex

Fire Suppression is a key factor in de-gradation of local ecosystems

Fires help control invasive plant species 10,000 years of burns have created

some of the rarest habitats seen in the world today

Physical ControlRemovalCuttingSawing Dragging Raking

Chemical Control Essential where fire is suppressed and

beneficial where fire is used. Selective Non selective Glyphosate Roundup Trclopyr Garlon Many others

Woody Control Cut stump treatment

20% glyphosate soln (water mix) 12.5% triclopyr soln (basal bark oil)

Chemical girdling Basal bark application 12.5% triclopyr/oil mix Only when bark is still smooth

Girdling Cutting with saw or axe a ring around the base of the

trunk, approx 2” wide, applying herbicide to this area helps.

Brush piles When the ground is frozen or with snow on the ground

Chainsaw/Brush Cutter/Bush Hog

Non Woody Control Invasive grasses/forbs

Spot treatment with 2% glyphosate Common Reed requires handwicking at

50% glyphosate soln Cutting plants before they go to seed Physical removal

-essential to remove all root especially those with rhizomes

Planting Seeding

Over seeding Interseeding Spraying, tilling, seedingBurn then seedSeeds need to touch dirt

Plugging Straight into plant matrixPlug hole

Management Mow method Burn Method Combined Watering rarely required Spot spray 3 to 5 years for new seedlings to

establish

Commonly Found Prairie Plants

Prairie Grasses Big Bluestem (Andropogon gerardii) Little Bluestem (Schizachyrium scoparium) Prairie Dropseed (Sporobolus heterolepsis) Indian Grass (Sorghastrum nutans) Switch Grass (Panicum virgatum) Prairie Cord Grass (Spartina pectinata) Side Oats Grama (Bouteloua curtipendula)

Big Bluestem(Andropogon gerardii)

•Also known as turkey Foot•Quintessential prairie plant •Dry to wet sites •Dominant in mesic sites•Used by Native American to treat digestive problems

Little Bluestem(Schizachyrium scoparium)

•Characteristic plant of the tall grass prairie•Reaches 4’ tall •Small •Found predominantly mesic sites but also drier sites

Prairie Dropseed(Sporobulus heterolepsis)

•Characteristic of mesic prairies•Characterized by dense tufts of long, very narrow leaves which are rolled slightly•Flower heads have pungent waxy aroma

Indian Grass(Sorghastrum nutans)

•Flowering at 7’ tall•Occurs as dense tufts or single stands•Rapid colonizer•Common throughout the tallgrass region

Switch Grass(Panicum virgatum)

•Common through out the tall grass region•Found in wet to mesic and drier sites•Can become very dominant

Prairie Cord Grass(Spartina pectinata)

•Very sharp edges leaves •Sometimes called ripgut•Has been used for thatching and fuel

Side Oats Grama (Bouteloua curtipendula)

•Very distinctive•Low grass 3’•Flower clusters form in rows along one side of the upper stem•Prefers well drained prairies

Canada Wild Rye (Elymus canadensis)

•Common along prairie edges•3-5’ tall•Moist to mesic sites•Seeds were used as food by Native Americans

Prairie Forbs Compass Plant (Siphium lacinatum) Praire Dock (Silphium terebinthinaceum) Asters (Asteraceae) Boneset (Eupatorium spp) Coneflowers (Echinacea spp) Blazing Stars (Liatris spp) Goldenrods (Solidago spp) Coreopsis (Coreopsis spp) Milkweeds (Asclepsis spp) Vervain (Verbena spp) Bergamot (Monarda fistulosa) Rattlesnake Master (Eryngium yuccifolium) Prairie Dogbane (Apocynum cannabinum)

Compass Plant(Silphium laciniatum)

•Striking member of the silphium group•Flower very similar to prairie dock•Leaves main distinguishing characteristic•Named for the way it follows the sun•Dried sap was used as chewing gum

Prairie Dock (Siphium terebinthinaceum)

•Fowers very similar to compass plant•Leaves wide and rough•Also orient themselves towards the sun

New England Aster(Aster novae-angliae)

•Commonly grown•Has some weedy tendencies•Wet to mesic prairies

Tall Boneset(Eupatorium altissimum)

•Common in dry upland prairies •More common in areas with history of disturbance

Coneflowers(Echinacea spp)

Purple Coneflower

(Echinacea purpurea)

•Often used as an ornamental

•Blooms from spring to fall

Pale Purple Coneflower

(Echinacea pallida)

•Roots sometimes used for herbal medicines•Ilegal rooting is a threat

Blazing Stars(Liatris spp)

•Six commonly found species of liatris

•Prairie

•Marsh

•Dotted

•Cylindrical

•Rough

•Scaly

•Dotted blazing star underparts was used as a food of last resort for native americans

Prairie Blazing Star

(Liatris pycnostachya)

Goldenrods(Solidago spp)

Showy (Solidago speciosa)Early (Solidago juncea)

Tall (Solidago altisima)

Coreopsis(Coreopsis spp) •4 common species

•Large flowered•Sand •Prairie•Tall•Prefers drier prairies •Upland sites

Sand Coreopsis (Coreopsis lanceolata)

Milkweeds(Asclepsis spp)

Butterfly Milkweed (Asclepias tuberosa)

•Known for attracting butterflies•Roots of tuberosa have been used as foods by Native Americans •Approx 14 commonly found species found on the prairie•Regular milkweed host plant for monarchs

Bergamot (Monarda fistulosa) •Member of the mint family

•Fairly common species though out the tall grass region •Also known as beebalm

Rattlesnake Master (Eryngium yuccifolium) •Striking plant a

member of the parsley family•Plant leaves resemble yucca leaves•Fairly common among prairies

Prairie Dogbane (Apocynum cannabinum)

•Common throughout the tallgrass region•Native Americans used the fiber for ropes and nets

Restoration Resources

The tallgrass restoration handbook Chicago Wilderness Atlas of Biodiversity The prairie of the Illinois country A natural history of the Chicago region