Neottia banksiana (Lindl.) Rchb.f. 1852
Photo by © Scott Cox and Naturalist.org Website
Photo by © Patricia Harding
to 
LATE 
to 
Common Name Banks' Neottia [English Botanist 1800's] - in USA Northwestern Twayblade
Flower Size 1/2" [1.25 cm]
Found in the western US and Canada in shady coniferous forests as a miniature sized, cold to cool growing terrestrial with 2 opposite leaves that blooms on an erect, racemose inflorescence that occurs in the late spring till autumn.
Synonyms Listera caurina Piper 1898; Neottia caurina (Piper) Szlach. 1995; Ophrys caurina (Piper) Rydb. 1905
References W3 Tropicos, Kew Monocot list , IPNI ; AOS Bulletin Vol 29 No 5 1960; AOS Bulletin Vol 30 No 5 1961 as Listera caurina drawing plant only; The Native Orchids of the United States and Canada Luer 1975 as Listera caurina drawing/photos fide; AAOS Bulletin Vol 84 #12 2015 photo fide; OS Bulletin Vol 86 #2 2017 photo good;
--------------------------------------------------------------------------------------------------------------------------
