English noun: flowers-of-an-hour | |||
1. | flowers-of-an-hour (plant) annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America | ||
Synonyms | black-eyed Susan, bladder ketmia, flower-of-an-hour, Hibiscus trionum | ||
Broader (hypernym) | hibiscus | ||