Spiranthes longilabris Lindley. Giant Spiral Orchid, Longhorn Ladies'-tresses. Phen: Late Oct-Dec. Hab: Wet pine savannas. Dist: Se. NC south to s. FL and west to e. TX.
Origin/Endemic status: Endemic
Synonymy: = Pace et al (2017); < Ibidium longilabre (Lindl.) House – S; < Spiranthes longilabris Lindl. – ETx1, FNA26, GW1, K1, K3, K4, NcTx, RAB, Tx, WH3, Brown (2002), Correll (1950), Luer (1972)
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