Meaning of jack-in-the-pulpit

jack-in-the-pul•pit

Pronunciation: ( jak'in-u-pool'pit, -pul'-), [key]
— pl. -pul•pits.
  1. A North American plant, Arisaema triphyllum, of the arum family, having an upright spadix arched over by a green or striped purplish-brown spathe.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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