'flowers-of-an-hour' definitions:

Definition of 'flowers-of-an-hour'

noun

Annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America [syn: flower-of-an-hour, flowers-of-an-hour, bladder ketmia, black-eyed Susan, Hibiscus trionum]

Definition of 'flowers-of-an-hour'

From: GCIDE

flowers-of-an-hour \flowers-of-an-hour\ n. An annual weedy herb (Hibiscus trionum) with ephemeral yellow purple-eyed flowers, native to the Old World tropics and naturalized as a weed in North America.
Syn: flower-of-an-hour, bladder ketmia, black-eyed Susan, Hibiscus trionum. [WordNet 1.5]

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