Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun flower-of-an-hour

1 sense of flower-of-an-hour

Sense 1
flower-of-an-hour, flowers-of-an-hour, bladder ketmia, black-eyed Susan, Hibiscus trionum -- (annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America)
       => hibiscus -- (any plant of the genus Hibiscus)