Canada's Plant Hardiness Site

Choose a species from the list below.

Email us if the plant you wish to report is not listed on the site, or to report any nomenclature errors.

family: Hypericaceae

Triadenum fraseri Fraser's marsh St. Johnswort,Fraser's St. Johnswort
Triadenum tubulosum southern marsh St. Johnswort,lesser marsh St. Johnswort
Triadenum virginicum Virginia marsh St. Johnswort,marsh St. Johnswort,swamp St. Johnswort,Virginia St. Johnswort