Daylily

This is the stamens of a "Happy Return". The flower will bloom from June thru the first frost.
Daylilies are perennial plants. The name Hemerocallis comes from the Greek words ἡμέρα (hēmera) "day" and καλός (kalos) "beautiful". This name alludes to the attractive flowers of this genus which typically last no more than 24 hours. The flowers of most species open at sunrise and wither at sunset, possibly replaced by another one on the same scape (flower stalk) the next day. Some species are night-blooming. Daylilies are not commonly used as cut flowers for formal flower arranging, yet they make good cut flowers otherwise as new flowers continue to open on cut stems over several days.