Ability to Respond Total:15 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:High
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
rapid reproduction, high seed set.
4
Spread Amount
It spreads quickly to form It poses a significant threat to riparian areas, where it can survive severe floods and is able to rapidly colonize scoured shores.
4
Damage
Notes
Score
Ecological
Potential to out compete native species and crops. Dense thickets exclude native vegetation and greatly alter natural ecosystems.
4
Agricultural
problem for grazing.
4
Infrastructure
0
Cultural
impacts recreational use of riparian areas.
2
Health
0
Benefit
Notes
Score
Ecological
major competitor of natives.
0
Agricultural
limited use in wine industry for muscat research
1
Infrastructure
0
Cultural
some use as an ornamental.
1
Health
0
Total
16
Ability to Respond
Ease of Response
Notes
Score
Detection
detection occurs after establishment.
3
Control
It is difficult to control because of its ability to re-grow from rhizomes.
2
Tools in Place
Notes
Score
Entry
California noxious weed B.
4
Control
Local mandates have kept the species out of most areas in California.
