Emerging Invasive Plants in the Mid-Atlantic Region - EDDMapS
Emerging Invasive Plants in the Mid-Atlantic Region - EDDMapS
Emerging Invasive Plants in the Mid-Atlantic Region - EDDMapS
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EMERGING INVASIVE<br />
PLANTS IN THE MID-<br />
ATLANTIC REGION:<br />
THE DIRTY 2 DOZEN<br />
Jil Swear<strong>in</strong>gen<br />
IPM <strong>Invasive</strong> Species Biologist<br />
NPS- National Capital <strong>Region</strong><br />
Center for Urban Ecology<br />
Wash<strong>in</strong>gton, DC
<strong>Invasive</strong> Plant Species <strong>Emerg<strong>in</strong>g</strong> <strong>in</strong> National Capital <strong>Region</strong> Parks<br />
Compiled by John Parrish, Botanist, NCRN Inventory & Monitor<strong>in</strong>g Program (5-17-2012)<br />
• Acer pseudoplantanus – Sycamore Maple (NACE, at Fort Dupont Park)<br />
• Aralia elata – Japanese Angelica-tree (CATO, north of campground; ROCR, Oregon/Military Rd. vic<strong>in</strong>ity)<br />
• Arum italicum – Italian Arum (ROCR, along <strong>the</strong> P<strong>in</strong>ehurst Tributary)<br />
• Berberis julianae – W<strong>in</strong>tergreen Barberry (ROCR, by Park Meadow; and NACE at Fort Dupont)<br />
• Buddleja davidii – Butterfly-bush (MONO, floodpla<strong>in</strong> of Bush Creek)<br />
• Cyrtomium falcatum – Japanese Net-ve<strong>in</strong>ed Holly Fern (NACE at Fort Dupont)<br />
• Elaeagnus pungens – Thorny Elaeagnus (ROCR, Park Road meadow and scattered elsewhere <strong>in</strong> park)<br />
• Eleu<strong>the</strong>rococcus sieboldianus – Five-leaf Aralia (ROCR, headwaters of Broad Branch along 36 th Street)<br />
• Euonymus alatus – Burn<strong>in</strong>g bush (ANTI, roadside thickets between Otto Farmhouse and Tour Stop 9)<br />
• Kalopanax septemlobus – Castor Aralia (NACE, <strong>in</strong> Piscataway Park south of River Road)<br />
• Ligustrum s<strong>in</strong>ense – Ch<strong>in</strong>ese Privet (ROCR, Normanstone and P<strong>in</strong>ey Branch; WOTR along Wolf Trap Run)<br />
• Lonicera maackii – Amur Honeysuckle (CATO, along Rt.77 <strong>in</strong> <strong>the</strong> vic<strong>in</strong>ity of <strong>the</strong> Visitor Center)<br />
• Mahonia bealei – Lea<strong>the</strong>rleaf Mahonia (ROCR, widely distributed <strong>in</strong> park <strong>in</strong> low densities)<br />
• Oplismenus hirtellus ssp. undulatifolius – Wavyleaf Basketgrass (Greenbelt and CHOH)<br />
• Osmanthus heterophyllus – Holly Osmanthus (ROCR, widely distributed <strong>in</strong> park <strong>in</strong> low densities)<br />
• Phellodendron lavallei – Lavalle’s Corktree (NACE, at Fort Dupont)<br />
• Pseudosasa japonica – Arrow Bamboo (ROCR, Battery Kemble Park vic<strong>in</strong>ity of 49 th and Dexter Street)<br />
• Pyrus betulifolia – Birchleaf Pear (NACE, Anacostia Park east of river south of Route 50)<br />
• Rhamnus utilis – Ch<strong>in</strong>ese Buckthorn (NACE, Baltimore - Wash<strong>in</strong>gton Parkway along Beaver Dam Road)<br />
• Salix madsudana – Ch<strong>in</strong>ese Willow (NACE, Anacostia Park <strong>in</strong> Kenilworth Marsh)<br />
• Rubus bifrons – (NACE, Fort Dupont Ridge Picnic Area and at <strong>the</strong> edge of <strong>the</strong> community gardens)<br />
• Viburnum dilatatum – L<strong>in</strong>den Viburnum (PRWI forest edge by Visitor Center and Travel Trailer Village)<br />
• Viburnum plicatum – Doublefile Viburnum (ROCR, Glover Archbold Park)
Sycamore Maple<br />
Acer pseudoplatanus<br />
Maple family - Aceraceae<br />
• Fort Dupont Park
Japanese Angelica-tree<br />
Aralia elata<br />
G<strong>in</strong>seng family - Araliaceae<br />
Photos from: http://www.<strong>the</strong>sangu<strong>in</strong>eroot.com<br />
Found at:<br />
• Catoct<strong>in</strong> Mounta<strong>in</strong><br />
Park, north of<br />
campground<br />
• Rock Creek Park,<br />
vic<strong>in</strong>ity of Oregon<br />
and Military Rds.
Five-leaf Aralia<br />
Eleu<strong>the</strong>rococcus (Acanthopanax) sieboldianus<br />
G<strong>in</strong>seng family - Araliaceae<br />
• Rock Creek - headwaters of Broad Branch along 36 th Street<br />
• MacArthur Blvd
Castor Aralia<br />
Kalopanax septemlobus<br />
G<strong>in</strong>seng family - Araliaceae<br />
• Piscataway Park south of River Road)
W<strong>in</strong>tergreen Barberry<br />
Berberis julianae<br />
Barberry family - Berberidaceae<br />
Found <strong>in</strong>:<br />
• Rock Creek, by Park Meadow<br />
• Fort Dupont
Lea<strong>the</strong>rleaf Mahonia<br />
Mahonia bealei<br />
Barberry family - Berberidaceae<br />
• Rock Creek - widely distributed <strong>in</strong><br />
park <strong>in</strong> low densities
Amur Corktree<br />
Phellodendron amurense<br />
Rue family - Rutaceae<br />
Found at several locations:<br />
• Fort Dupont<br />
• Piscataway Park
Lavalle’s Corktree<br />
Phellodendron lavallei<br />
Rue family - Rutaceae<br />
• Found <strong>in</strong> Fort Dupont
Ch<strong>in</strong>ese yam<br />
Dioscorea polystachya<br />
Yam family (Dioscoreaceae)
• Monocacy National Battlefied- floodpla<strong>in</strong> of Bush Creek<br />
Butterfly-bush<br />
Buddleja davidii<br />
Snapdragon family - Scrophulariaceae
L<strong>in</strong>den Viburnum<br />
Viburnum dilatatum<br />
Honeysuckle family - Caprifoliaceae<br />
• Pr<strong>in</strong>ce William Forest Park - forest edge by Visitor Center and Travel Trailer Village<br />
• Rock Creek - nor<strong>the</strong>rn “boundary” section west of Beach Drive<br />
• George Wash<strong>in</strong>gton Memorial Parkway – Turkey Run
Doublefile Viburnum<br />
Viburnum plicatum<br />
Honeysuckle family - Caprifoliaceae<br />
• Found <strong>in</strong> Rock Creek - Glover Archbold Park
Ch<strong>in</strong>ese Privet<br />
Ligustrum s<strong>in</strong>ense<br />
Olive family - Oleaceae<br />
• Rock Creek Normanstone and P<strong>in</strong>ey Branch<br />
• Wolf Trap along Wolf Trap Run
Holly Osmanthus /False Holly<br />
Osmanthus heterophyllus<br />
Olive family - Oleaceae<br />
• Rock Creek - widely distributed <strong>in</strong> park <strong>in</strong> low densities
Himalayan Blackberry<br />
Rubus bifrons<br />
Rose family - Rosaceae<br />
Found at:<br />
• Fort Dupont Ridge Picnic<br />
Area and at <strong>the</strong> edge of <strong>the</strong><br />
community gardens
Thorny Elaeagnus<br />
Elaeagnus pungens<br />
Oleaster family - Elaeagnaceae<br />
• Rock Creek - Park Road meadow<br />
and scattered elsewhere <strong>in</strong> park
Ch<strong>in</strong>ese Buckthorn<br />
Rhamnus utilis<br />
Buckthorn family - Rhamnaceae<br />
• Baltimore - Wash<strong>in</strong>gton Parkway along<br />
Beaver Dam Road
Arrow Bamboo<br />
Pseudosasa japonica<br />
Grass family - Poaceae<br />
• Rock Creek- Battery Kemble<br />
Park vic<strong>in</strong>ity of 49 th and<br />
Dexter Street
Japanese Net-ve<strong>in</strong>ed Holly Fern<br />
Cyrtomium falcatum<br />
family - Polypodiaceae<br />
• Fort Dupont
Wavyleaf Basketgrass<br />
Oplismenus hirtellus ssp. undulatifolius<br />
Grass family - Poaceae<br />
• Baltimore County<br />
• Montgomery County<br />
• Fairfax County<br />
• Greenbelt Park<br />
• Chesapeake and Ohio Canal<br />
• Pa<strong>in</strong>t Branch Park
Japanese Silvergrass<br />
Miscanthus s<strong>in</strong>ensis<br />
Grass family - Poaceae
Ravenna grass<br />
Ripidium ravennae<br />
Grass family - Poaceae
Jo<strong>in</strong><strong>the</strong>ad Grass<br />
Arthraxon hispidus<br />
Grass family - Poaceae<br />
• Along Chesapeake and Ohio Canal Photo by Leslie J. Mehrhoff
Broadleaf Hellebor<strong>in</strong>e<br />
Epipactis hellebor<strong>in</strong>e<br />
Orchid family - Orchidaceae<br />
Photo by Paula Sullivan, Alexandria<br />
VA
Italian Arum<br />
Arum italicum<br />
Arum family - Araceae<br />
Photo by Bill Johnson, Nature<br />
Stock Photography<br />
Found at:<br />
• Rock Creek, along P<strong>in</strong>ehurst tributary<br />
• US National Arboretum, scattered<br />
locations<br />
Jeff McMillian @ USDA-NRCS PLANTS Database
Marsh dewflower<br />
Murdannia keisak<br />
Spiderwort family - Commel<strong>in</strong>aceae<br />
Photo by L<strong>in</strong>da Lee, University of South Carol<strong>in</strong>a<br />
Illustration – USDA <strong>Plants</strong> Databaes<br />
Found at:<br />
• Piscataway Park wetland<br />
• Patuxent Wildlife Research Center
Spanish bluebells<br />
Hyac<strong>in</strong>thoides hispanica<br />
Hyac<strong>in</strong>th family (Hyac<strong>in</strong>thaceae)<br />
Flower Photo by<br />
Bill Johnson,<br />
Nature Stock Photography
Summer snowflake<br />
Leucojum aestivum<br />
Lily family (Liliaceae)
Yellow archangel<br />
Lamiastrum galeobdolon<br />
M<strong>in</strong>t family (Lamiaceae)
Jetbead<br />
Rhodotypos scandens<br />
Rose family (Rosaceae)<br />
Photos by John Randall, University of California Davis
Sawtooth Oak<br />
Quercus acutissima<br />
Oak family (Fagaceae)
Thank you!<br />
For more <strong>in</strong>formation, feel free to email me at:<br />
• Sources of <strong>in</strong>formation:<br />
Jil_Swear<strong>in</strong>gen@nps.gov<br />
• John Parrish NPS, National Capital <strong>Region</strong>, Inventory and Monitor<strong>in</strong>g<br />
Program Botanist for f<strong>in</strong>d<strong>in</strong>g some new <strong>in</strong>vasive species!<br />
• <strong>Invasive</strong> Plant Atlas of <strong>the</strong> United States www.<strong>in</strong>vasiveplantatlas.org<br />
• Plant Invaders of <strong>Mid</strong>-<strong>Atlantic</strong> Natural Areas<br />
• USDA <strong>Plants</strong> Database http://plants.usda.gov/
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