Hypericum majus (Larger Canadian St. Johnswort): Minnesota Wildflowers
Hypericum sect. Adenosepalum - Wikipedia
Plants | Free Full-Text | Evolutionary Aspects of Hypericin Productivity and Endogenous Phytohormone Pools Evidenced in Hypericum Species In Vitro Culture Model
Hypericum Sect. Adenosepalum (Section Adenosepalum) · iNaturalist United Kingdom