What is (a) Twisted back upon itself, as some parts of plants. (b) Arranged so as to overlap each other; as, petals in contorted or convolute æstivation called?

contorted — (Bot.) (a) Twisted back upon itself, as some parts of plants. (b) Arranged so as to overlap each other; as, petals in contorted or convolute æstivation. (Webster's 1913.)

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