Assertion: sweet flag | /r/AtLocation | continent
Facets:
Source sentences:
text: However, it is important to note that some species of sweet flag are invasive to North America and Europe (only Acorus calamus and Acorus Americanus are known to be native to these continents), so be sure to choose these species over Japanese sweet flag species.
text: However, it is important to note that some species of sweet flag are invasive to North America and Europe (only Acorus calamus and Acorus Americanus are known to be native to these continents), so be sure to choose these species over Japanese sweet flag species.