The Purpose of the Watchlist is to provide a list of possible troublesome invasive plants to monitor for their spread and affect on their surroundings. The list is developed by the Nebraska Noxious Weed Advisory Committee that is made up of private and public agencies that may be affected by invasive non-native plants. The listed plants maybe on an adjoining state's weed list or maybe affecting agriculture or the ecosystem of Nebraska. If you would like to see the current distribution of any watchlist species, please visit or mapping site at http://www.neweedmapper.org and select those species of concern.
Nebraska Watch List for Invasive Species 2007
| Images |
Common
Name
(Species) |
Basic Biology |
Habitat of Concern |
Control |
|
Amur Honeysuckle
(Lonicera maackii)
|
Growth Form: Forb
Life Span: Biennial
Origin: Asia
Flowering Dates: July-September
Reproduction:
Seeds |
Woodlands of Eastern Nebraska |
Mechanical
Cultural
Chemical
Biological
|
|
Crown Vetch
(Coronilla varia) |
Growth Form: Forb
Life Span: Perennial
Origin: Eurasia/North Africa
Flowering Dates: May-August
Reproduction: Seeds |
Grasslands Statewide |
Mechanical
Cultural
Chemical
Biological |
|
Dalmatian Toadflax
(Linaria dalmatica) |
Growth Form: Forb
Life Span: Perennial
Origin: Europe
Flowering Dates: July-August
Reproduction: Rhizomes and seeds |
Grasslands and Woodlands of Northwestern Nebraska |
Mechanical
Cultural
Chemical
Biological |
|
Dame's Rocket
(Hesperis matronalis)
|
Growth Form: Forb
Life Span: Biennial
Origin: Europe
Flowering Dates: May-August
Reproduction: Seeds |
Woodlands Statewide |
Mechanical
Cultural
Chemical
Biological |
|
European Buckthorn
(Rhamnus cathartica/
R.davurica) |
Growth Form: Tree/Shrub
Life Span: Perennial
Origin: Europe
Flowering Dates: May-June
Reproduction: Seeds |
Woodlands Statewide |
Mechanical
Cultural
Chemical
Biological |
|
Garlic Mustard
(Allaria petiolata) |
Growth Form: Forb
Life Span: Biennial
Origin: Europe
Flowering Dates: May-June
Reproduction: Seeds |
Woodlands of Eastern Nebraska-spreading westward |
Mechanical
Cultural
Chemical
Biological |
|
Whitetop sp.
(Cardaria ssp. -three species) |
Growth Form: Forb
Life Span: Perennial
Origin: Eurasia
Flowering Dates: April-May
Reproduction: Rhizomes and seeds |
Grasslands Statewide |
Mechanical
Cultural
Chemical
Biological |
|
Houndstongue
(Cynoglossum officinale) |
Growth Form: Forb
Life Span: Biennial
Origin: Europe
Flowering Dates: May-July
Reproduction: Seeds |
Woodlands and Bottomlands in North-central and Western Nebraska |
Mechanical
Cultural
Chemical
Biological |
|
Multiflora Rose
(Rosa multiflora) |
Growth Form: Shrub
Life Span: Perennial
Origin: Asia
Flowering Dates: May-June
Reproduction: Seeds |
Grasslands and Woodlands in East 1/2 of state -spreading westward |
Mechanical
Cultural
Chemical
Biological |
|
Scotch Thistle
(Onopordum acanthium) |
Growth Form: Forb
Life Span: Biennial
Origin: Eurasia
Flowering Dates: June-August
Reproduction: Seeds |
Grasslands West and Central Nebraska |
Mechanical
Cultural
Chemical
Biological |
|
Sericea Lespedeza
(Lespedeza cuneata) |
Growth Form: Forb
Life Span: Perennial
Origin: Asia
Flowering Dates: July-October
Reproduction: Seeds |
Grasslands in Eastern 1/2 of Nebraska |
Mechanical
Cultural
Chemical
Biological |
|
Yellow Toadflax
(Linaria vulgaris) |
Growth Form: Forb
Life Span: Perennial
Origin: Eurasia
Flowering Dates: June-August
Reproduction: Rhizomes and seeds |
Grasslands Statewide |
Mechanical
Cultural
Chemical
Biological |
|
St. John's Wort
(Hypericum perforatum) |
Growth Form: Forb
Life Span: Perennial
Origin: Europe
Flowering Dates: June-August
Reproduction: Seeds and Rhizomes |
Grasslands Statewide |
Mechanical
Cultural
Chemical
Biological |
|
Caucasian Bluestem
(Bothriochloa bladhii) |
Growth Form: Grass
Life Span: Perennial
Origin: Eurasia
Flowering Dates: June-August
Reproduction: Rhizomes and seeds |
Grasslands in Southeastern Nebraska |
Mechanical
Cultural
Chemical
Biological |
|
Autumn Olive
(Elaeagnus umbellata) |
Growth Form: Tree/Shrub
Life Span: Perennial
Origin: Eurasia
Flowering Dates: May-June
Reproduction: Seeds and Root Suckers |
Grasslands and Bottomlands of Eastern 1/2 of Nebraska |
Mechanical
Cultural
Chemical
Biological |
|
Russian Olive
(Elaeagmus angustifolia) |
Growth Form: Tree/Shrub
Life Span: Perennial
Origin: Eurasia
Flowering Dates: May-June
Reproduction: Seeds and Root Suckers |
Grasslands and Bottomlands Statewide |
Mechanical
Cultural
Chemical
Biological |
