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Fens, marly meadows, bogs, marshes, wet shores including alpine and subalpine zones.
Broadly distributed across Canada from Newfoundland and Labrador to AK, south to NY, northern PA, northern OH, MI, IA, NE, and CA. Also occurs in Ireland and England.
Perennial to 40 cm. Basal leaves 2-5, slender, to 20+ cm, present at anthesis; spikes dense, flowers in 3 or 4 vertical ranks; sepals and lateral petals connivent for most of their length to form an open-tubular hood over the column; labellum pandurate, constricted just above the middle and strongly expanded distally; flowers sweetly fragrant.
Flowers mid July to mid August in central NY
Wetland indicator: OBL
This species seems to flower during a period in mid to late summer when most other moisture-loving Spiranthes spp. have either finished flowering or have yet to flower.
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of
Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Michael Hough © 2017