Plants in horticulture
Interested in finding out which horticultural plants may cause problems in California’s natural areas? The table below shows all plants from the Cal-IPC Inventory that are known to occur in horticulture. Plants with an asterisk (*) after the scientific name are “Watch” plants, which are not currently invasive in California but which have been assessed as a high risk of becoming invasive in California in the future.
- Click the scientific name to see the Risk Assessment for any plant.
- For the Plant Profile page, with links to more information about that plant, click the icon in the right column.
- To sort the list (for instance, by rating), click on the appropriate column heading.
- To show only the plants found in a given PlantRight Region, use the Region filter [under construction].
| Scientific name | Common names | Rating | Alert | Profile |
|---|---|---|---|---|
| Acacia baileyana * | cootamundra wattle | Watch |  |
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| Acacia dealbata | silver wattle | Moderate | |
|
| Acacia longifolia * | Sydney golden wattle | Watch | |
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| Acacia melanoxylon | blackwood Acacia | Limited | |
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| Acacia saligna * | orange wattle | Watch | |
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| Acaena novae-zelandiae * | biddy-biddy | Watch | |
|
| Agrostis stolonifera | creeping bent | Limited | |
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| Ailanthus altissima | tree-of-heaven | Moderate | |
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| Alopecurus pratensis * | meadow foxtail | Watch | |
|
| Araujia sericifera * | bladderflower | Watch | |
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| Arctotheca calendula | fertile capeweed | Moderate | X | |
| Arctotheca prostrata | capeweed | Moderate | |
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| Arum italicum * | Italian Arum | Watch | |
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| Arundo donax | giant reed | High | |
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| Asparagus aethiopicus * | Asparagus fern | Watch | |
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| Asparagus asparagoides | bridal creeper | Moderate | X | |
| Asphodelus fistulosus | onion weed | Moderate | X | |
| Atriplex semibaccata | Australian saltbush | Moderate | |
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| Berberis darwinii * | Darwin barberry | Watch | |
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| Briza maxima | big quakinggrass | Limited | |
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| Buddleja davidii * | butterfly bush | Watch | |
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| Carex pendula * | hanging sedge | Watch | |
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| Carpobrotus chilensis | sea fig | Moderate | |
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| Carpobrotus edulis | highway iceplant | High | |
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| Casuarina equisetifolia * | beach sheoak | Watch | |
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| Catharanthus roseus * | Madagascar periwinkle | Watch | |
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| Cestrum parqui * | willow jessamine | Watch | |
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| Chasmanthe floribunda * | African cornflag | Watch | |
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| Cortaderia jubata | jubatagrass | High | |
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| Cortaderia selloana | pampasgrass | High | |
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| Cotoneaster franchetii | orange Cotoneaster | Moderate | |
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| Cotoneaster lacteus | milkflower Cotoneaster | Moderate | |