Species: 

Senecio vulgaris

Common Name: 

old man in the Spring

Systems Affected (standardized): 

cropland/pastureland, disturbed/waste areas, urban/garden

Regions(s) present (updated by AB): 

SE

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Impacts: 

problem weed in cultivated crops, gardens and nurseries. It is poisonous to cattle and horses and toxic to humans. It contains pyrrolizidine alkaloids, which can cause irreversible liver damage and possibly death.
Damaged ecosystem services
Ecosystem change/ habitat alteration
Negatively impacts agriculture
Negatively impacts human health
Negatively impacts animal health
Reduced native biodiversity

Source? likely to be reintroduced: 

Highly likely to be transported internationally accidentally
Difficult to identify/detect as a commodity contaminant
Difficult/costly to control

Info Blurb: 

Poisonous to cattle and horses and toxic to humans. It contains pyrrolizidine alkaloids, which can cause irreversible liver damage and possibly death. Highly likely to be transported accidentally. Difficult to identify/detect as a commodity contaminant and difficult/costly to control.

Native Regions in OK: 

NONE

Current and past designations: 

BS

Present in OK?

Present in Bordering States?

OK, TX, NM, CO, KS, MO, AR, LA

Has Legal Status in BS?

NONE