Crude Drug: St John’s wort
Biological Source Hypericum perforatum
Family Hypericaceae
Official used part Flowering tops
Major Marker Constituent Hypericin; hyperforin
Constituentclass Naphthodianthrones/phloroglucinols
Pharmacognostic traditional use Herbal preparations; important interactions
Drug Type Aerial parts
Scientific Name Hypericum perforatum
Category Aerial-part drugs
Source Type Natural crude drug
Databasescope Pharmacognosy / Crude Drug Database
Educational Note Educational pharmacognosy reference; therapeutic claims and regulatory status should be verified against current authoritative sources.