References

Lacroix-Carignan, É., C.J. Chapman-Lam, C.S. Blaney, and É. Léveillé-Bourret. 2024. Imperforate St. John's-Wort (Hypericum maculatum subsp. obtusiusculum): a new overlooked nonnative forb for eastern North America. Rhodora 124(1000): 436-444. Google Scholar