Ability to Respond Total:12 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:High
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
Species has expanded rapidly in past two decades, but primarily in northeastern portions. Can be found elsewhere, but not as commonly.
3
Spread Amount
Common in pastures and rangeland, prefers wetter areas. Can also occasionally be weedy in agricultural areas. Common in alkali soils.
3
Damage
Notes
Score
Ecological
Possibly disrupts nitrogen cycle, thus weeding out other native species. Can form dense stands, particularly in northeast California.
4
Agricultural
Minor weed in some crops.
1
Infrastructure
0
Cultural
0
Health
0
Benefit
Notes
Score
Ecological
0
Agricultural
0
Infrastructure
0
Cultural
0
Health
0
Total
11
Ability to Respond
Ease of Response
Notes
Score
Detection
Fairly easy to detect. More difficult in remote rangelands.
4
Control
Fairly difficult to control as a perennial. Mechanical and cultural means not very effective. Only a few chemical methods can control the species, but they can be effective with small patches.
3
Tools in Place
Notes
Score
Entry
CDFA B listed
2
Control
Some local control efforts, as this a CDFA B listed plant.
