Spiranthes vernalis Engelm. & A.Gray

Synonyms: Gyrostachys ensifolia (Rchb.f.) Kuntze; Gyrostachys linearis Rydb.; Gyrostachys praecox (Britton, Sterns & Poggenb.) Kuntze; Gyrostachys reverchonii Small; Gyrostachys vernalis (Engelm. & A.Gray) Kuntze; Gyrostachys xyridifolia Small; Ibidium vernale (Engelm. & A.Gray) House; Ibidium vernalis (Engelm. & A.Gray) House; Ophrys aestivalis Michx.; Spiranthes ensifolia Rchb.f.; Spiranthes graminea var. praecox Britton, Sterns & Poggenb.; Spiranthes reverchonii (Small) Cory; Spiranthes reverchonii (Small) K.Schum.; Triorchis linearis (Rydb.) Nieuwl.; Triorchis vernalis (Engelm. & A.Gray) House; Triorchis xyridifolius (Small) Britton; Triorchos linearis (Rydb.) Nieuwl.; Triorchos vernalis (Engelm. & A.Gray) House; Triorchos xyridifolius (Small) Britton
Homonyms: Spiranthes vernalis Engelm. & A.Gray
Common names: Spiranthe printanière in French; Spring Ladies' Tresses in English; Spring Ladies'-tresses in English; Spring Lady's Tresses in English; Upland Ladies'-tresses in English; grassleaf ladies'-tresses in English; spring ladies'-tresses in English; spring ladies'-tresses in English; spring ladies'-tresses in English; spring lady's tresses in English; upland ladies'-tresses in English; Xyris-leaved Ladies Tresses in English; xyris-leaved ladies tresses in English

Catling, P. M.; Cruise, J. E. (1974). Spiranthes casei, a new species from northeastern North America. <em>Rhodora.</em> 76.808: 526-536.
Les, D. H., R. R. Haynes, and A. Novelo-Retana. 2009. Plants (Embryophyta) of the Gulf of Mexico, Pp. 261–284 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.