Assertion: comfrey | /r/HasProperty | toxic
Facets:
value: for both humans
type: TRANSITIVE-OBJECT
value: for livestock
type: TRANSITIVE-OBJECT
value: to the liver
type: TRANSITIVE-OBJECT
Source sentences:
text: Comfrey is toxic to the liver for both humans and livestock and should not be taken orally or used on open wounds.
text: Being a toxic plant, comfrey can not be ingested (Pyrrolizidine alkaloids are the toxic principles of comfrey).
text: A quick superficial search indicates that comfrey is dangerous and toxic.
text: and yes, comfrey has been found to be toxic when taken internally.
text: Since a chemical in isolation behaves differently than when present in a whole plant, rats are different than humans, and it is unclear whether common comfrey (S. officinale) or Russian comfrey (S. uplandicum) was used, there is dissension among herbalists regarding this decision and whether comfrey is indeed toxic.
text: Since a chemical in isolation behaves differently than when present in a whole plant, rats are different than humans, different routes of administration can affect toxicity, and it is sometimes unclear which comfrey species (S. officinale or S. uplandicum) was used, there is dissension among herbalists regarding this decision and whether comfrey is indeed toxic to a healthy human (Hoffmann, 2003)
text: Is comfrey toxic?