Canada's Plant Hardiness Site

Hypericaceae st. John's-wort family
Hypericum ascyron subsp. pyramidatum (Aiton) N.Robson
En: great St. Johnswort, giant St. Johnswort;
Fr: millepertuis a grandes fleurs, millepertuis ascyron, millepertuis faux-ascyrum

• [=Hypericum amplexicaule Lam., nom. illeg.]
• [=Hypericum ascyroides Willd.]
• [=Hypericum ascyron L. var. americanum (Spach) Y.Kimura]
• [=Hypericum bartramianum Mill.]
• [=Hypericum macrocarpum Michx.]
• [=Hypericum pyramidatum Aiton - basionym]