Invasive Plant

Identification

for Regional Mapping

Statewide Eyes Training

for Western Maryland Kerrie L. Kyde

Invasive Plant Ecologist

MD DNR Natural Heritage Program

kerrie.kyde@maryland.gov

2

• Norway maple

• Tree of heaven

• Empress tree

• Callery pear

Acer platanoides

Ailanthus altissima

Paulownia tomentosa

Pyrus calleryana

Trees

oregonstate.edu/dept/ ldplants/images/acpl-sa2.jpg

www.northshorewx.com/ images/2005/nature/Leave

Sugar maple fruit

© 2003 Steve Baskauf

bioimages.cas.vanderbilt.edu

Norway maple fruit

Judy Sedbrook www.colostate.edu

Norway maple Acer platanoides

Ailanthus altissima

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Native

lookalikes

staghorn

and smooth

sumac

Tree of heaven

Rhus typhina

Rhus glabra

Paulownia tomentosa

Chris Evans UGA www. Forestry images.org

An

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Empress tree

http//biology.missouristate.edu_herbarium

Empress tree

Catalpa speciosa

Fruit

Leaves

Northern catalpa

Paulownia tomentosa

Flowers

Bark

Steve Sieberling, UNC Herbarium

7

Pyrus calleryana

Callery pear

Shrubs

Berberis thunbergii

Elaeagnus umbellata

Ligustrum spp. IPAC T2 (Border)

Lonicera spp. IPAC T1 (Amur)

Rosa multiflora

Rubus phoenicolasius

Spiraea japonica

• Japanese barberry

• Autumn olive

• Privet species

• Shrub honeysuckles

• Multiflora rose

• Wineberry

• Japanese spiraea

Japanese barberry B

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Berberis thunbergii

Autumn olive

Elaeagnus umbellata

Privet Ligustrum obtusifolium Border privet

L. sinense Chinese privet

L. vulgare Common/European privet

Troy Evans, Great Smoky Mt Natl. Park, Bugwood.org

Photo by Pancrat, Creative Commons

L. sinense

Nava Tabal, IPANE, Bugwood.org

L. vulgare

James H. Miller, USDA Forest Service, www. Forestryimages.org

Leslie J. Mehrhoff, Univ of Conn., Bugwood.org

L. obtusifolium

Chris Evans, Univ of Illinois, bugwood.org

IPAC Tier 2

Robert Vidéki, Doronicum Kft, Bugwood.org

Lonicera spp.

Shrub honeysuckle Amur honeysuckle

IPAC Tier 1 (proposed)

Rosa multiflora

Stipules

Multiflora rose

Wineberry Le

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Rubus phoenicolasius

Kris Johnson, Great Smoky Mountain National Park, Bugwood.org

Japanese spiraea Spiraea japonica

Vines

• Porcelainberry Ampelopsis brevipedunculata

• Oriental bittersweet Celastrus orbiculatus

• English and Irish ivy Hedera helix, H. hibernica

• Japanese hop Humulus japonicus (herbaceous)

• Japanese honeysuckle Lonicera japonica

• Mile-a-minute weed Persicaria perfoliata (herbaceous)

• Crown vetch Securigera varia

• Wisteria species Wisteria floribunda, sinensis, hybrid IPAC T2

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Ampelopsis brevipedunculata

All other photos by Kerrie L. Kyde

Jil Swearingen, NPS, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Porcelainberry

Oriental bittersweet

Celastrus orbiculatus

English and Irish ivy Ja

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http://alienplantsbelgium.be/content/hedera-hibernica

Hedera helix, H. hibernica

H. hibernica H. helix

Drawings by

S. Bellanger

Humulus japonicus

Native Virginia creeper leaf

Japanese hop

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Japanese honeysuckle

Lonicera japonica

Persicaria perfoliata

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Mile-a-minute

Native lookalike

Halberd-leaved tearthumb

Polygonum arifolium

Securigera varia

James H. Miller, USDA Forest Service, Bugwood.org

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Steve Baskauf, Vanderbilt University Dept. of Biological Sciences, Bugwood.org

Crown vetch

Ohio State Weed Lab , The Ohio State University, Bugwood.org

Ohio State Weed Lab , The Ohio State University, Bugwood.org

Wisteria floribunda, sinensis, x formosa

Wisteria

IPAC Tier 2

Herbs & Grasses

Alliaria petiolata

Centaurea stoebe

Fallopia japonica

Heracleum mantegazzianum

Lythrum salicaria

Microstegium vimineum

Phyllostachys aurea

Perilla frutescens

• Garlic mustard

• Spotted knapweed

• Japanese knotweed

• Giant hogweed

• Purple loosestrife

• Japanese stilt grass

• Golden bamboo

• Beefsteak plant

Alliaria petiolata

Native violet

Leslie J. Mehrhoff, University of CT, Bugwood.org

Britt Slattery, US Fish and Wildlife, Bugwood.org

Garlic mustard

Centaurea stoebe

Caleb Slemmons, National Ecological Observatory Network, Bugwood.org

Leslie H. Mehrhoff, Univ of Conn., Bugwood.org

John Cardina, The Ohio State University

Ken Chamberlain, The Ohio State University, Bugwood.org

Joseph M. DiTomaso, University of California – Davis, Bugwood.org

Leslie H. Mehrhoff, Univ of Conn., Bugwood.org

Spotted knapweed

Japanese knotweed

Fallopia japonica

Left to right: leaves of F. sachalinensis, x bohemica and japonica

Armin Jagel, Bochum Botanical Club

All photographs by Lane Heimer, MDA

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Heracleum mantegazzianum

Giant hogweed

Native Cow Parsnip

http://www.dec.ny.gov/ animals/72766.html

Lythrum salicaria

Purple loosestrife

Microstegium vimineum

Japanese stilt grass

Phyllostachys spp. Ja

mes

H. M

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, USD

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These are P. aurea.

Bamboo

Perilla frutescens

Beefsteak plant

Aquatics

Hydrilla verticillata

Iris pseudacorus IPAC T1

Murdannia keisak

Myriophyllum aquaticum

Myriophyllum spicatum

• Hydrilla

• Yellow flag iris

• Marsh dewflower

• Parrot-feather

• Eurasian watermilfoil

Hydrilla verticillata

Hydrilla

Mike Naylor, MD DNR

Vic Ramey,

Univ of Florida

Drawing courtesy of IFAS

Center for Aquatic Plants

Nancy Loewenstein,

Auburn University,

Bugwood.org

Leslie J. Mehrhoff, University of

Connecticut, Bugwood.org

Joseph M. DiTomaso, University of California - Davis, Bugwood.org

Iris pseudacorus

Yellow flag

IPAC Tier 1

Nancy Loewenstein,

Auburn University,

Bugwood.org

Lin

da

Le

e, U

niv

ers

ity o

f S

outh

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rolin

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.org

Murdannia keisak

Marsh dewflower

Native Commelina virginica

Virginia dayflower

By Jim Stasz, hosted by

USDA-NRCS Plants

Database

Myriophyllum aquaticum and spicatum

Parrot feather Eurasian watermilfoil

All other images from

Maryland DNR

Drawing and image below courtesy

of IFAS at http://plants.ifas.ufl.edu/

Kerrie L. Kyde

Invasive Plant Ecologist

MD DNR Natural Heritage Program

kerrie.kyde@maryland.gov

301/948-8243

THANK YOU!