flower-of-an-hour

flower-of-an-hour

n

(Life Sciences & Allied Applications / Plants) a malvaceous Old World herbaceous plant, Hibiscus trionum, having pale yellow flowers with a bladder-like calyx Also called bladder ketmia

Thesaurus

Noun

1.

flower-of-an-hour - annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America bladder ketmia, flowers-of-an-hour, Hibiscus trionum, black-eyed Susan hibiscus - any plant of the genus Hibiscus