Ability to Respond Total:7 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:High
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
Moderate spread, spreading in wet and riparian areas in Southern California
3
Spread Amount
Has potential to invade areas near coast and inland where wet soils are present. Under future scenarios, habitat could expand in California (see citation).
3
Damage
Notes
Score
Ecological
Can grow in dense patches in wet and riparian areas, crowding out other plants and reducing habitat for riparian wildlife. Outside of wet areas, grows less dense, but still reduces habitat.
4
Agricultural
In Australia it is a significant agricultural weed. Unpalatable to cows, toxic to horses, however palatable to sheep and goats
3
Infrastructure
0
Cultural
0
Health
0
Benefit
Notes
Score
Ecological
0
Agricultural
0
Infrastructure
0
Cultural
0
Health
0
Total
13
Ability to Respond
Ease of Response
Notes
Score
Detection
Large plants are easy to detect when tall and in flower, hard to detect the rest of the season, especially small plants growing in dense vegetation
3
Control
Individual plants and clumps are somewhat amenable to control, however herbicide use can be limited in riparian areas, and seeds of this species disperse widely, making it difficult to control an entire populations without escapees.
3
Tools in Place
Notes
Score
Entry
none
0
Control
none
0
Outreach
limited outreach, although published materials exist. Few land managers have had to tackle this species yet.
