Spiranthes magnicamporum Sheviak. Phen: Sep-Oct. Hab: Grassy barrens and glades over limestone or serpentine. Dist: Primarily in the Great Plains, from ND south to TX, east (often as widely disjunct populations) to sw. ON, NY, se. PA, sw. VA (Ludwig 1999), KY, w. TN (Jones 2006), and nw. GA.
Origin/Endemic status: Native
Synonymy: = Ar, C, ETx1, FNA26, Il, K1, K3, K4, Mi, Mo1, NcTx, NY, Pa, Tn, Hough & Young (2021), Luer (1975); < Spiranthes cernua (L.) Rich. – G; < Spiranthes cernua (L.) Rich. var. cernua – F, Correll (1950)