⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50094876, with some changes.
This name is a synonym of Osmorhiza aristata var. longistylis (Torr.) B. Boivin.
The record derives from Tropicos which reports it as a synonym (record 50094876) with original publication details: Ill. Fl. N. U.S. 2: 530 530 1897.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:267798-2.