Having an abnormal or irregular number of sepals, the leaf-like parts that surround a flower before it blooms.
From prefix dis- (not, opposite of) combined with sepalous (having sepals), derived from sepal, which comes from French 'sépale,' coined in the early 1800s. The dis- prefix indicates a deviation from the normal sepal arrangement.
Botanists use this term to identify genetic mutations or unusual plant varieties—a single misspelled letter in a plant's DNA could make a flower with 4 sepals instead of 5, which scientists would call 'disepalous.' It's how nature experiments!
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