⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50113082, with some changes.

Stipa humilis f. humilis is a synonym of Pappostipa humilis var. ruiziana (Parodi) Romasch.

This name is a synonym of Pappostipa humilis var. ruiziana (Parodi) Romasch..

The record derives from Tropicos which reports it as a synonym (record 50113082).