noun
Usage: usually capitalized I
Etymology: indian (II) 2; perhaps from the use of its pithy stems by American Indians for the stems of tobacco pipes
: a leafless saprophytic herb ( Monotropa uniflora ) native to Asia and the United States that is waxy white and turns black in drying and has a solitary nodding flower that becomes erect in fruit ; broadly : sweet pinesap
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Indian pipe
]