Dactylorhiza viridis (Linnaeus) R.M. Bateman, Pridgeon, & M.W. Chase. Frog Orchid, Long-bracted Frog Orchid. Phen: Apr-Jun. Hab: Moist forests. Dist: Circumboreal, south in North America to w. NC, OH, c. IN, c. IL, n. MO, NE, NM, AZ, and WA.

Origin/Endemic status: Native

Taxonomy Comments: Infraspecific taxa are sometimes recognized; var. virescens is e. Asian and North American, in e. North America south in the Appalachians to NC, generally more "southern" than the typic var. viridis, which is more completely circumboreal, widespread in n. Eurasia and far northern North America.

Synonymy: = K4, Bateman & Rudall (2018), Bateman, Pridgeon, & Chase (1997); = Coeloglossum viride (L.) Hartm. – FNA26, Il, K3, Mi, NE, NY, Pa, Va; > Coeloglossum bracteatum (Muhl. ex Willd.) Parl. – S, S13; > Coeloglossum viride (L.) Hartm. var. virescens (Muhl. ex Willd.) Luer – K1, Mo1, Tn, W, Luer (1975); > Dactylorhiza viridis (L.) R.M.Bateman, Pridgeon, & M.W.Chase var. virescens (Muhl. ex Willd.) Baumbach; > Habenaria viridis (L.) R.Br. var. bracteata (Muhl. ex Willd.) Rchb. ex A.Gray – C, F, G, RAB, Correll (1950); > Habenaria viridis (L.) R.Br. var. viridis – F

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FAC (name change)
• Eastern Mountains and Piedmont: FACU (name change)
• Great Plains: FACU (name change)
• Midwest: FAC (name change)
• Northcentral & Northeast: FAC (name change)

Heliophily ?: 4