Definition
Bastard feverfew refers to various plants that resemble true feverfew (Tanacetum parthenium) but are not the same species. These plants often share similar medicinal properties, but can vary in their chemical composition and effectiveness. The term 'bastard' implies a resemblance without being genuine. Think of it as the off-brand version of a popular product; similar, but not quite the real deal. These plants might be used in herbal remedies, though caution is advised due to potential differences in potency.