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Texas Invasive Plant Inventory
Please read the information on the Texas Invasive Plant Inventory including how plants were listed and what the ratings mean. Click on the scientific name to go to the assessment. Key to abbreviations: IMP - Impact, INV - Invasiveness, DIST - Distribution, DOC - Documentation.
| Name | Rating | Imp | Inv | Dist | Alert | Doc |
Ailanthus altissima Tree of heaven |
Moderate |
B |
B |
A |
N |
3.08 |
Alternanthera philoxeroides Alligatorweed |
Moderate |
B |
B |
A |
N |
3.23 |
Arundo donax Giant reed |
High |
A |
B |
A |
N |
3.84 |
Bothriochloa ischaemum var. songarica King Ranch bluestem |
Not listed |
B |
B |
U |
N |
2 |
Broussonetia papyrifera Paper mulberry |
Moderate |
B |
B |
A |
N |
2.61 |
Centaurea melitensis Malta star-thistle |
Moderate |
B |
A |
A |
N |
3.15 |
Colocasia esculenta Elephant ears |
Moderate |
B |
A |
A |
N |
2.5 |
Cryptostegia grandiflora Palay rubbervine |
High |
A |
B |
B |
N |
3.69 |
Cynodon dactylon Bermudagrass |
Moderate |
B |
B |
A |
N |
2.7 |
Cyrtomium falcatum Japanese netvein hollyfern |
Low |
U |
C |
A |
N |
1.14 |
Eichhornia crassipes Common water hyacinth |
High |
A |
A |
A |
N |
3.3 |
Firmiana simplex Chinese parasoltree |
Moderate |
B |
B |
A |
N |
2.00 |
Hydrilla verticillata Hydrilla |
High |
A |
A |
A |
N |
3.38 |
Imperata cylindrica Cogongrass |
High |
A |
A |
C |
Y |
3.5 |
Ligustrum lucidum Glossy privet |
High |
A |
A |
A |
N |
3.41 |
Lonicera japonica Japanese honeysuckle |
Moderate |
B |
B |
A |
N |
3 |
Lygodium japonicum Japanese climbing fern |
High |
A |
A |
A |
N |
2.9 |
Dolichandra unguis-cati Catclawvine |
Moderate |
B |
A |
A |
N |
2.15 |
Melia azedarach Chinaberry tree |
High |
A |
B |
A |
N |
2.69 |
Myriophyllum aquaticum Parrotfeather milfoil |
High |
A |
A |
B |
N |
3.76 |
Rating
1. High – These species have severe ecological impacts on physical processes, plant and animal communities, and vegetation structure. Their reproductive biology and other attributes are conducive to moderate to high rates of dispersal and establishment. Most are widely distributed ecologically.
2. Moderate – These species have substantial and apparent—but generally not severe—ecological impacts on physical processes, plant and animal communities, and vegetation structure. Their reproductive biology and other attributes are conducive to moderate to high rates of dispersal, though establishment is generally dependent upon ecological disturbance. Ecological amplitude and distribution may range from limited to widespread.
3. Limited – These species are invasive but their ecological impacts are minor on a statewide level or there was not enough information to justify a higher score. Their reproductive biology and other attributes result in low to moderate rates of invasiveness. Ecological amplitude and distribution are generally limited, but these species may be locally persistent and problematic.
4. Not Listed - Evaluated but lack sufficient information to assign a rating or the available information indicates that the species does not have significant impacts at the present time.
Alert
Specific combinations of section scores that indicate significant potential for invading new ecosystems triggers an Alert designation so that land managers may watch for range expansions. Y = Yes, N = No
Documentation
Assessed as highest level of documentation for each criterion.
4 = Reviewed scientific publications
3 = Other published material (reports or other non-peer-reviewed documents)
2 = Observational (unpublished information confirmed by a professional in the field)
1 = Anecdotal (unconfirmed information)
0 = No information
