achlamydeous

/ˌækləˈmɪdiəs/
adjective
  1. Describing a flower that lacks both a calyx and a corolla (i.e., has no petals or sepals).
    • Willow flowers are achlamydeous, appearing as simple catkins without petals.
    • The botanist explained that achlamydeous flowers rely on wind for pollination.
    • Students examined the achlamydeous structure of the oak flower under a microscope.
Antonyms
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