Family: Orchidaceae
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Relatively small, to 6 dm; spur 18-27 mm; fringe of the lip 3-6 mm. Northern, s. to N.J., Pa., and locally in Ill.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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