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Cleistesiopsis oricamporum P.M. Brown. Small Dragonhead Pogonia. Phen: Apr-Jul. Hab: Pine savannas, longleaf pine sandhill seepage bogs. Dist: Coastal Plain from se. VA to c. peninsular FL and west to e. LA (and e. TX?); possibly disjunct inland in the Eastern Highland Rim (Coffee County, TN).

Origin/Endemic status: Endemic

Taxonomy Comments: Catling & Gregg (1992) make a convincing case for the recognition of Cleistesiopsis bifaria (including C. oricamporum) 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. The co-occurrence of C. divaricata and C. oricamporum at such sites as the Green Swamp, Brunswick County, NC, where phenologically separated, supports their taxonomic status. Where co-occurring, C. oricamporum flowers on average about 10 days before C. divaricata. Studies by Smith et al. (2004) suggested the probability that montane and Coastal Plain populations of "C. bifaria" represent 2 different species, a taxonomic proposition formalized by Brown & Pansarin (2009); this conclusion needs additional study, but the taxa are provisionally accepted here to draw attention to them.

Synonymy: = K3, K4, Pansarin & Brown (2009); < Cleistes bifaria (Fernald) Catling & Gregg – ETx1, FNA26, K1, Catling & Gregg (1992), Gregg (1991); < Cleistes divaricata (L.) Ames – C, G, GW1, RAB, S, Tx, W, Correll (1950), Luer (1975); < Cleistes divaricata (L.) Ames var. bifaria Fernald – F, WV; < Cleistesiopsis bifaria (Fernald) Pansarin & F.Barros – Va, Pansarin & de Barros (2008); < Pogonia bifaria (Fernald) P.M.Br. & Wunderlin – WH3; < Pogonia divaricata (L.) R.Br. – S13

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image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Floyd A. Griffith | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Floyd A. Griffith | Original Image ⭷

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