Osmorhiza longistylis (Longstyle Sweetroot) is a species of perennial herb in the family umbellifers. They are native to Canada and The Contiguous United States. Flowers are visited by Orange-banded Spineleg, Physoconops sylvosus, Orange-horned Hammertail, and Trypoxylon clavatum. Individuals can grow to 10 dm.
EOL has data for 15 attributes, including: