Osmorhiza longistylis (Longstyle Sweetroot) is a species of perennial herb in the family umbellifers. They have a self-supporting growth form. They are native to The Contiguous United States and Canada. They have simple, broad leaves. Flowers are visited by Cheilosia hoodiana, Spotted Lady Beetle, Botanophila inornata, and Chyliza apicalis. Individuals can grow to 10 dm.
EOL has data for 19 attributes, including: