The Exotic Plant Management Team (EPMT) at the Center for Urban Ecology (CUE) is responsible for controlling invasive exotic plants within the parks of the National Capital Region (NCR) and occasionally assists parks in adjacent regions. As one of seventeen established EPMTs within the National Park Service (NPS), the NCR-EPMT inventories and maps all exotic vegetation and develops strategies for controlling these plants. Regional management of exotic species encompasses approximately 26,300 hectares (65,000 acres) that span the District of Columbia, Maryland, Virginia, and West Virginia. Due to the numerous and varied habitats of the NCR, eradication methods and/or strategies for control are developed specifically for individual species and parks. The successful management and restoration of disturbed areas are accomplished through partnerships between the NCR-EPMT, park staff, and numerous volunteer groups concerned with invasive exotic plants. The EPMT engages in an active outreach program providing information to interested volunteers and community groups.

Weed Alert Briefs
Acer pseudoplatanus
Sycamore Maple
Alternanthera philoxeroides
Alligator Weed
Aralia elata
Japanese Angelica Tree
Arum italicum
Italian Arum
Arundinaria pygmaea
Pygmy Bamboo
Arundo donax
Giant Reed
Berberis julianae
Wintergreen Barberry
Buddleja davidii
Orange Eye Butterflybush
Cynanchum louiseae
Black Swallow-wort
Cynanchum rossicum
Pale Swallow-wort
Cyrtomium falcatum
Japanese Holly Fern
Eleagnus pungens
Thorny Olive
Eleutherococcus sieboldianus
Five-leaf Aralia
Heracleum mantegazzianum
Giant Hogweed
Hyacinthoides hispanica
Spanish Bluebells
Lamiastrum galeobdolon
Yellow Archangel
Leucojum aestivum
Summer Snowflake
Ligustrum sinense
Chinese Privet
Liriope spicata
Creeping Lilyturf
Lonicera maackii
Amur Honeysuckle
Mahonia bealei
Leatherleaf Mahonia
Oplismenus hirtellus
Wavyleaf Basketgrass
Osmanthus heterophyllus
Holly Osmanthus
Pennisetum alopecuroides
Fountain Grass
Phellodendron amurense
Japanese Corktree
Polygonum sachalinense
Giant Knotweed
Pseudosasa japonica
Arrow Bamboo
Pyrus betulifolia
Birch-leaf Pear
Quercus acutissima
Sawtooth Oak
Rhamnus utilis
Chinese Buckthorn
Rubus bifrons
Himalayan Berry
Salix matsudana
Corkscrew Willow
Salvinia molesta
Giant Salvinia
Schoenoplectus mucronatus
Bog Bulrush
Styphnolobium japonicum
Pagoda Tree
Tripidium ravennae
Ravenna Grass
Viburnum dilatatum
Linden Viburnum




Mark Frey
EPMT Liason
National Park Service
Center for Urban Ecology
4598 MacArthur Blvd NW
Washington, DC 20007

(202) 339-8317