Yes, almost all parts of the
plant, including roots, young shoots, the spiny bracts on the flower head, the stems and the leaves can be eaten.
CAUTIONS / CONTRAINDICATIONS:
Considered toxic to livestock. Avoid using if you are pregnant or breast-feeding.
DRUG INTERACTIONSs:
May interfere with antipsychotics, seizure medications, halothane, allergy drugs, drugs for high cholesterol, anti-anxiety drugs, antiplatelet and anticoagulant drugs, as well as some cancer drugs.