IPAW Working List of the
Invasive Plants of Wisconsin
Explanation of column headings
Number of survey respondents (Obs. No.) and the average scores
for the Impact and Disturbance Level survey variables are shown.
(nn) following a species name indicates a non-native strain of
a species that also has native strains occurring in Wisconsin.
Growth Form:
| F |
Forb |
| G |
Grass |
| S |
Shrub |
| T |
Tree |
| V |
Vine |
Disturbance Level
| 0 |
only in sites disturbed within last 3 years |
| 20 |
in high-quality, undisturbed natural areas |
Impact
| 0 |
little or no ecological impact |
| 10 |
invades and replaces native communities |
Wet. Ind. Status
Wetland Indicator Status for Region 3 from the "National List of
Plant Species that Occur in Wetlands"; plants with no indicators
status listed are presumed to be upland, or species that occur >99%
of the time in upland habitats.
Indicator categories
| Code |
Wetland Type |
| OBL |
Obligate Wetland |
Occurs almost always (estimated
probability 99%) under natural conditions in wetlands. |
| FACW |
Facultative Wetland |
Usually occurs in wetlands (estimated
probability 67%-99%), but occasionally found in non-wetlands.
|
| FAC |
Facultative |
Equally likely to occur in wetlands
or non-wetlands (estimated probability 34%-66%). |
| FACU |
Facultative Upland |
Usually occurs in non-wetlands (estimated
probability 67%-99%), but occasionally found on wetlands (estimated
probability 1%-33%). |
| UPL |
Obligate Upland |
Occurs in wetlands in another region,
but occurs almost always (estimated probability 99%) under natural
conditions in non-wetlands in the regions specified. If a species
does not occur in wetlands in any region, it is not on the National
List. |
| NA |
No agreement
|
The regional panel was not able
to reach a unanimous decision on this species. |
| NI |
No indicator |
Insufficient information was available
to determine an indicator status. |
| NO |
No occurrence
|
The species does not occur in that
region. |
Habitats Invaded:
| A |
Aquatic |
| B |
Barrens |
| G |
Grassland |
| F |
Forest |
| W |
Wetland |
Taken from the most common responses on the IPAW-GLIFWC survey;
almost all species were recorded as also occurring in disturbed
habitats (not recorded here).
|
