Osmorhiza longistylis, commonly called long-styled sweet-cicely or longstyle sweetroot, is an herbaceous plant in the family Apiaceae. It is native to North America, where it is found from the Rocky Mountains east to the Atlantic Coast, in Canada and the United States. Its natural habitat is in forests with fertile soil, often in areas of loam and dappled sunlight. It can be found in areas of high or average quality natural communities, and does not tolerate intense disturbance.

It is an herbaceous perennial that grows to two and a half feet tall. It produces umbels of small white flowers in late spring and early summer. The crushed plant has a distinct scent of anise.

...