Guide with Images for identification: InvasivePlantsFieldGuide.pdf (msu.edu)
MISIN – Michigan Invasive Species Information Network to report Invasives and use the MISIN App
Local events for Invasive Control:
CISMAs: Managing invasive species near you – Oakland County CISMA
Check out the recent Invasive Species Summit info
TOP REPORTED INVASIVE SPECIES
- Phragmites (Invasive): 58,985
- Garlic mustard: 15,723
- Brown marmorated stink bug: 12,258
- Japanese knotweed: 11,353
- Autumn olive: 11,267
- Spotted knapweed: 9,407
- Purple loosestrife: 7,097
- European frog-bit: 6,145
- Bush honeysuckle: 6,106
- Japanese barberry: 5,450
Delaware recently banned the sale of many more plants. These should be considered suspect in Michigan as well. See this list below.
Based on the expert assessments, an I-Rank, or invasive rank was determined based on expert responses denoting the level at which a species is invasive in the identified geographic area, in this case, the state of Delaware. These ranks are categorized by high, medium, low, and insignificant. If a species was ranked as high, medium, or low, they are deemed invasive to some degree by the experts and; therefore, are included in the current iteration of the DISC list of Invasive Plant Species. Species ranked as insignificant, were added to the DISC Watch List and will be reevaluated in two years when the list will again be revised. Additionally, for future revisions to the list, selected species thought to be invasive in Delaware will also be evaluated. In contrast to the 2006 DISC list of invasive plants, the new list includes only two categories – invasive and watch list. Below are the results.
DISC Invasive Plant List
| Species | Common Name |
| Acer palmatum | Japanese maple |
| Acer platanoides | Norway maple |
| Acorus calamus | European sweetflag |
| Ailanthus altissima | Tree of heaven |
| Alliaria petiolata | Garlic mustard |
| Ampelopsis glandulosa | Porcelain berry |
| Berberis thunbergii | Japanese barberry |
| Celasrus orbiculatus | Oriental bittersweet |
| Centaurea stoebe subsp. micranthos | Spotted knapweed |
| Clematis terniflora | Japanese Clematis |
| Elaeagnus umbellata | Autumn olive |
| Eragrostis curvula | Weeping lovegrass |
| Euonymus alatus | Winged euonymus |
| Euonymus fortunei | Wintercreeper |
| Fallopia japonica | Japanese knotweed |
| Ficaria verna | Lesser celandine |
| Hedera helix | English ivy |
| Hemerocallis fulva | Orange daylily |
| Hydrilla verticillata | Hydrilla |
| Iris pseudacorus | Yellow flag iris, Water flag |
| Koelreuteria paniculata | Golden raintree |
| Leucojum aestivum | Summer snowflake |
| Ligustrum vulgare | European privet |
| Lonicera japonica | Japanese honeysuckle |
| Lonicera maackii | Amur honeysuckle |
| Lonicera morrowii | Morrow’s honeysuckle |
| Lonicera tatarica | Tartarian honeysuckle |
| Lysimachia nummularia | Creeping Jenny |
| Lythrum salicaria | Purple loosestrife |
| Microstegium vimineum | Japanese stilt grass |
| Miscanthus sinensis | Chinese silvergrass |
| Murdannia keisak | Marsh Dewflower |
| Pachysandra terminalis | Japanese pachysandra |
| Persicaria perfoliata | Mile-a-minute |
| Phalaris arundinacea | Reed canarygrass |
| Phragmites australis subsp. australis | European reed |
| Pinus thunbergiana | Japanese black pine |
| Pyrus calleryana | Callery pear |
| Rosa multiflora | Multiflora rose |
| Rubus phoenicolasius | Wineberry |
| Viburnum dilatatum | Linden arrowwood |
| Viburnum sieboldii | Siebold’s viburnum |
| Vinca minor | Lesser periwinkle |
| Wisteria sinensis | Chinese wisteria |
DISC Invasive Plant Watch List
| Species | Common Name |
| Buddleja davidii | Butterflybush |
| Ilex crenata | Japanese holly |
| Lespedeza thunbergii | Thunberg’s bushcover |
| Lilium lancifolium | Tiger lily |
| Lotus corniculatus | Bird’s foot trefoil |
| Mahonia bealei | Leatherleaf mahonia |
| Quercus acutissima | Sawtooth oak |
| Spirea japonica | Japanese spirea |
| Viburnum plicatum | Japanese snowball |
| Viburnum setigerum | Tea viburnum |