This is the 3035th most frequent Swedish word.
johannes
"Johannes" is a Swedish male given name, equivalent to "John" in English.
In this case, 'johannesört' incorporates 'Johannes' as part of the compound noun referring to the plant 'St. John's wort.'
I vår trädgård växer johannesört, vilket är en medicinalväxt.
In our garden grows St. John's wort, which is a medicinal plant.
In this sentence, 'Johannes' is used as a proper noun representing a person's name.
Johannes är min vän och han är mycket talangfull.
Johannes is my friend and he is very talented.
Here, 'Johannes' is used as a reference to a historical or biblical figure, specifically John the Baptist.