Ability to Respond Total:11 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:High
Confidence Notes:Several published papers are available for this species
Impact
Spread
Notes
Score
Spread Rate
Populations spread rapidly in Southern California, can become dense.
4
Spread Amount
Found in a variety of habitats in California. Has been introduced to other 3 Mediterranean climates in the world, native to the Mediterranean. Found in a variety of habitats around the world, unknown how far can spread beyond current (mostly coastal) area.
3
Damage
Notes
Score
Ecological
Can form dense stands, invades a variety of habitats, is spreading in Southern California
4
Agricultural
Toxic to cows and horses, reduces forage and can degrade rangelands
4
Infrastructure
0
Cultural
0
Health
Sap is toxic
1
Benefit
Notes
Score
Ecological
0
Agricultural
0
Infrastructure
0
Cultural
0
Health
0
Total
16
Ability to Respond
Ease of Response
Notes
Score
Detection
Moderately easy to detect, large plants are easiest to detect when growing among large grasses. Harder when growing among shrubs.
3
Control
Plants are difficult to control. Seeds persist for several years in the soil. Plants when hand pulled often re-sprout, if the root is not removed and plants easily break near soil surface.
1
Tools in Place
Notes
Score
Entry
Carnation spurge is on sec. 4500 noxious weed list
3
Control
Carnation spurge is on sec. 4500 noxious weed list
