Stipa pennata subsp. joannis (Celak.) Hyl. Dataset Integrated Taxonomic Information System (ITIS) Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Poales family Poaceae genus Stipa species Stipa pennata Name Homonyms Stipa pennata subsp. joannis (Celak.) Pacz. Stipa pennata subsp. joannis (Celak.) Hyl.