Invasive Plant

Identification

for Regional Mapping

Statewide Eyes Training

for Eastern Maryland Kerrie L. Kyde

Invasive Plant Ecologist

MD DNR Natural Heritage Program

kerrie.kyde@maryland.gov

2

• Tree of heaven

• Empress tree

• Callery pear

Ailanthus altissima

Paulownia tomentosa

Pyrus calleryana

Trees

Ailanthus altissima

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Native lookalikes

staghorn and

shining sumac

Tree of heaven

Rhus typhina

Rhus copallinum

Paulownia tomentosa

Chris Evans UGA www. Forestry images.org

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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

6

Pyrus calleryana

Callery pear

Shrubs

Elaeagnus umbellata

Ligustrum spp. IPAC T2

Lonicera spp. IPAC T1 (Amur)

Rosa multiflora

• Autumn olive

• Privet species

• Shrub honeysuckles

• Multiflora rose

Autumn olive

Elaeagnus umbellata

Ligustrum obtusifolium

Border privet

L. sinense Chinese privet

L. vulgare Common privet

Privet

Ronald Billings, Texas A&M Forest Service, Bugwood.org

Photo by Pancrat, Creative Commons

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

L. sinense

Robert Vidéki, Doronicum Kft, Bugwood.org

IPAC Tier 2

Lonicera spp.

Shrub honeysuckle IPAC Tier 1 (proposed): Amur honeysuckle

Rosa multiflora

Stipules

Multiflora rose

Vines

• Porcelainberry Ampelopsis brevipedunculata

• Oriental bittersweet Celastrus orbiculatus

• English and Irish ivy Hedera helix, H. hibernica

• Japanese honeysuckle Lonicera japonica

• Kudzu Pueraria montana var. lobata

• Wisteria species Wisteria floribunda, sinensis, hybrid IPAC Tier 2

Woody

Herbaceous

• Japanese hop Humulus japonicus • Mile-a-minute weed Persicaria perfoliata

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Porcelainberry

Ampelopsis brevipedunculata

Oriental bittersweet

Celastrus orbiculatus

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Hedera helix, H. hibernica

H. hibernica H. helix

Drawings by

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Japanese honeysuckle

Lonicera japonica

Ted Bodner, SWSS, www.forestryimages.org

David J. Moorhead, Univ. of Georgia, www.forestryimages.org

James H. Miller, USDA Forest Service, www.forestryimages.org Kudzu

Pueraria montana var. lobata

Wisteria floribunda, sinensis, x formosa

Wisteria

IPAC Tier 2

Humulus japonicus

Native lookalike

Virginia creeper

Japanese hop

Persicaria perfoliata

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Mile-a-minute

Native lookalike

Halberd-leaved tearthumb

Polygonum arifolium

Herbs & Grasses

Alliaria petiolata

Fallopia japonica

Lythrum salicaria

Microstegium vimineum

Phyllostachys aurea

Perilla frutescens

Phragmites australis

• Garlic mustard

• Japanese knotweed

• Purple loosestrife

• Japanese stilt grass

• Golden bamboo

• Beefsteak plant

• Common reed

Alliaria petiolata

Native violet

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

Britt Slattery, US Fish and Wildlife, Bugwood.org

Garlic mustard

Japanese knotweed

Fallopia japonica

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

Armin Jagel, Bochum Botanical Club

Lythrum salicaria

Purple loosestrife

Microstegium vimineum

Japanese stilt grass

Phyllostachys spp

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These are P. aurea.

Bamboo

Perilla frutescens

Beefsteak plant

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

Phragmites australis

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Common reed

Aquatics

Hydrilla verticillata

Iris pseudacorus IPAC Tier 1

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

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Murdannia keisak

Marsh dewflower

Native Commelina virginica

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!