Flower-of-an-hour

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The plant Hibiscus trionum
  2. 2
    annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America wordnet

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.