Flora of the Southeastern United States
2022 Edition

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References

Sheviak, C.J., and P.M. Brown. 2002. Spiranthes. In Flora of North America Editorial Committee. 2002a. Flora of North America north of Mexico. Volume 26, Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York, NY. 723 pp.