mission bells

(noun) herb of southwestern United States having dark purple bell-shaped flowers mottled with green. Synonyms: mission bells, black fritillary, Fritillaria biflora.

(noun) herb of northwestern America having green-and-purple bell-shaped flowers. Synonyms: mission bells, rice-grain fritillary, Fritillaria affinis, Fritillaria lanceolata, Fritillaria mutica.