the root (no rank)
Eukaryota (domain)
Viridiplantae (kingdom)
Embryophyta (phylum)
Magnoliophyta (subphylum)
eudicotyledons (no rank)
core eudicotyledons (no rank)
asterids (no rank)
campanulids (no rank)
Asterales (order)
Asteraceae (family)
Carduoideae (subfamily)
Cardueae (tribe)
Centaurea (genus)
Centaurea americana (species)
[show inferior taxa]