!Isotria verticillata (Willd.) Raf. 1808 Photo by Chuck McCartney

Another Flower

Photo by Timothy Choltco

Another Flower

Photos by Thomas Kornack


Common Name The LargeWhorled Pogonia

Flower Size 1 1/2" to 2 1/2" [3.75 to 6.25 cm]

Found in the eastern United States from moist sandy pinewoods to mixed hardwood slopes and along forested stream banks at altitudes of 280 to 700 meters as a small sized, cold growing terrestrial with an erect, smooth, slender, hollow, purplish stem carrying at the apex a whorl of 5 to 6, green, oblongrounded, obtuse leaves that blooms in the early spring in Florida to summer in the north on a terminal, erect, 2" [5 cm] long, one to few flowered inflorescence that arises after the leaves begin to form and has no floral bract.

Synonyms *Arethusa verticillata Muhl ex Willd. 1805; Odonectis verticillata (Muehl. ex Willd.) Raf. 1808; Pogonia verticillata [Muhl ex Willd.] Nutt. 1818

References W3 Tropicos, Kew Monocot list , IPNI ; Die Orchideen Schlechter 1915; Encyclopedia of Cultivated Orchids Hawkes 1965; The Native Orchids of Florida Luer 1972 photos fide; AOS Bulletin Vol 44 #5 1975 photo fide; Die Orchideen 3 Auflage Bd 1 Sonderabdruck aus Schlechter Lieferung 7 385 - 448 Brieger, Maatsch and Senghas 1975; The Native Orchids of the United States and Canada Luer 1975 drawing/photos fide; AOS Bulletin Vol 56 No 5 1987 photo fide; AOS Bulletin Vol 60 No 4/340 1991 photo fide; Schlechteriana Vol 4 No 4 1993; AOS Bulletin Vol 67 No 5 1998 as the Whorled Pogonia photo fide; AOS Bulletin Vol 78 No 5 2009 photo fide; AOS Bulletin Vol 81 #6 2012 photo fide; AOS Bulletin Vol 86 #6 2017 photo fide;