Synonyms for Calochortus Nuttallii (same or very similar meaning)
WordNet sense 1 (perennial plant having clusters of one to four showy white bell-shaped flowers atop erect unbranched stems; edible bulbs useful in times of scarcity; eastern Montana and western North Dakota south to northern Arizona and northwestern New Mexico):
sego lilyFrom the ODE community, based on WordNetadd/edit