HEMEROCALLIS - Daylilies are perennials, whose name alludes to the flowers which typically last no more than 24 hours. The flowers of most species open in early morning and wither during the following night, replaced by another the next day, not commonly used as cut flowers, continue to open on cut stems over several days. Most kinds of daylilies occur as clumps, each of which has leaves, a crown, flowers, and roots. A normal, single daylily flower has three petals and three sepals, collectively called tepals, each with a midrib in either the same basic color or a different color. The centermost part of the flower, called the throat usually is of a different color. Each flower usually has six stamens.