Stipa williamsii Scribner
Stipa williamsii Scribner is a synonym sensu Peterson et al., 2019a of:
Eriocoma nelsonii (Scribner) Romaschenko subsp. nelsonii, an accepted subspecies name sensu Peterson et al., 2019a.
Stipa williamsii Scribner is a synonym sensu Peterson et al., 2019a of:
Eriocoma nelsonii (Scribner) Romaschenko subsp. nelsonii, an accepted subspecies name sensu Peterson et al., 2019a.