Same as achlamydate; lacking a perianth in botanical structure.
From Latin 'a-' (without) + Greek 'chlamys' (cloak) + Latin adjective suffix '-ous'. A more formal botanical term than 'achlamydate' for describing flowerless protective structures.
Achlamydeous flowers include humble plants like grasses and nettles—flowers so reduced they're barely noticeable, yet they're incredibly successful at reproduction without flashy petals!
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