Ability to Respond Total:7 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:Medium
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
Currently locally distributed in Southern California, with one recent (2022) location in central coast. Wide distribution across southern Australia and New Zealand
3
Spread Amount
Occupies a wide variety of habitats in home range of Mediterranean, invading a wide variety of habitats in California, roadsides, riparian areas, sage scrub, horticulture. Populations are too early in infestation and dispersal to determine full extent.
4
Damage
Notes
Score
Ecological
Forms dense stands, flowers for a long period, patches remind persistent. Most stands are growing and spreading in Southern California.
3
Agricultural
Could be a pest of agriculture, including rangelands, similar to other Brassica species.
1
Infrastructure
0
Cultural
0
Health
0
Benefit
Notes
Score
Ecological
Could provide forage for pollinators, however it is unknown if it actually does.
0
Agricultural
0
Infrastructure
0
Cultural
0
Health
0
Total
11
Ability to Respond
Ease of Response
Notes
Score
Detection
Often overlooked as it is similar to other Brassica species, especially before fruits ripen.
4
Control
It is a prolific seed producer and has a longer phenology compared to some other Brassica species, which will make it more difficult to control and control re-sprouts.
