The Cal-IPC Inventory
The Inventory categorizes plants that threaten California's natural areas. The Inventory includes plants that currently cause damage in California (invasive plants) as well as "Watch" plants that are a high risk of becoming invasive in the future. For information about the Inventory, see "Inventory Details" below.The Inventory represents the best available knowledge of invasive plant experts in California. Categorization is based on an assessment of ecological impacts, conducted with transparent science-based criteria and expert review. The Inventory has no regulatory authority, and should be used with full understanding of the limitations described here.
Background
Explanation of Cal-IPC ratings
About the Inventory assessment process
Assessed, Not on Inventory
Plants are not listed on the Inventory when our assessment finds insignificant current impact and/or insufficient risk of becoming invasive in the future to qualify as a Watch plant. See the list of plants that have been assessed and not added to the Inventory
Pending Assessment
We maintain a list of plants that need to be assessed for current invasiveness or risk of future invasiveness. We draw from this list for periodic updates to the Inventory. See the list of plants pending assessment
Problematic Natives
A handful of native species cause ecological problems where they have been moved outside their historic range in California.
See list of problematic native plants
Using the Inventory table:
- Click a plant’s Scientific Name to see its Plant Profile page. For the plant’s assessment, click the icon in the far right column, PAF/PRE.
- The CDFA column lists California Dept. of Food and Agriculture weed ratings (see CDFA definitions here). A checkmark in the Hort column denotes plants that are known from horticulture; the icon in the CWM column links to the CalWeedMapper page for the plant; the icon in the ID card links to a species identification card for the plant, if available (complete listing of Species ID Cards).
- To sort the table by any column heading (except ID Card), simply click on the column heading. To list only plants from certain Jepson Regions or Habitat Types, use the filters below.
- “Watch” species are not currently invasive in California. Assessment has found them to be a high risk for becoming invasive in the future.
| Scientific name | Common names | Rating | Alert | CDFA | Hort | CWM | ID card | PAF/ PRE |
|---|---|---|---|---|---|---|---|---|
| Acacia baileyana | cootamundra wattle | Watch | ✔ |  |