fairy-slipper

from the GNU version of the Collaborative International Dictionary of English.

• noun a rare north temperate bog orchid (Calypso bulbosa) bearing a solitary white to pink flower marked with purple at the tip of an erect reddish stalk above one basal leaf.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun rare north temperate bog orchid bearing a solitary white to pink flower marked with purple at the tip of an erect reddish stalk above 1 basal leaf