day lily

definition: any of numerous perennials having tuberous roots and long narrow bladelike leaves and usually yellow lily-like flowers that bloom for only a day
example:
speech part: noun
synonyms: daylily
definition: any of numerous perennials having mounds of sumptuous broad ribbed leaves and clusters of white, blue, or lilac flowers
example:
speech part: noun
synonyms: plantain lily

How day lily is being used?