the root (no rank)
Eukaryota (domain)
Viridiplantae (kingdom)
Embryophyta (phylum)
Magnoliophyta (subphylum)
Liliopsida (class)
Cyperales (order)
Poaceae (family)
Pooideae (subfamily)
Bromus (genus)
[hide inferior taxa]
Bromus inermis (species)
Bromus secalinus (species)