 flowers-of-an-hour |
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| 1. | [ noun ] (botany) annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America | |
| Synonyms: | bladder_ketmia black-eyed_Susan Hibiscus_trionum flower-of-an-hour | |
| Related terms: | hibiscus | |
