Cleistesiopsis bifaria (Fernald) Pansarin & F. Barros. Appalachian Dragonhead Pogonia. Phen: May-Jul; Jul-Sep. Hab: Moist to fairly dry meadows, dry ridgetops under pines (where seasonally moist), fire-maintained oak-pine woodlands. Dist: WV south through w. VA, e. KY, w. NC, and e. and c. TN to w. SC, n. GA and n. AL.

Origin/Endemic status: Endemic

Taxonomy Comments: Catling & Gregg (1992) make a convincing case for the recognition of Cleistesiopsis bifaria and C. divaricata as specifically distinct (as Cleistes), based on differences in morphology, range, phenology (in the sympatric portions of their ranges), and floral fragrance.

Synonymy ⓘ: = K3, K4, Pansarin & Brown (2009); < Cleistes bifaria (Fernald) Catling & Gregg – FNA26, K1, Tn, Catling & Gregg (1992), Gregg (1991); < Cleistes divaricata (L.) Ames – C, G, GW1, RAB, S, W, Correll (1950), Luer (1975); < Cleistes divaricata (L.) Ames var. bifara – WV, misspelling; < Cleistes divaricata (L.) Ames var. bifaria Fernald – F; < Cleistesiopsis bifaria (Fernald) Pansarin & F.Barros – Va, Pansarin & de Barros (2008); < Pogonia divaricata (L.) R.Br. – S13

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Heliophily ⓘ: 7