Spiranthes porrifolia Lindl. 1840
Photo by © Keir Morse and The Cal Photos Website
Photo by Dale Borders
Drawing by Carl Luer
and 
Common Name Leek-Leaved Spiranthes - in the USA The Western Ladies' Tresses
Flower Size .4" [1 cm]
Found in California, Idaho, Nevada, Oregon and Washington as a terrestrial at elevations around 1000 to 2000 meters in seepage slopes, along streams and in boggy ravines in mountains as a small to medium sized, cold growing terrestrial with 3 to 4, basal and on the lower portion of the stem, elliptic-lanceolate, onion like, grading to bracts above leaves that can be or not present at blooming which occurs in the spring and summer on an erect, peduncle to 20" [50 cm] long, rachis to 4.8" [12 cm] long, many flowered inflorescence with lanceolate, longer than the ovary floral bracts and carrying fragrant flowers in a dense tight spiral.
Synonyms Gyrostachys porrifolia (Lindl.) Kuntze 1891; Ibidium porrifolium (Lindl.) Rydb. 1905; Orchiastrum porrifolium (Lindl.) Greene 1894; Spiranthes romanzoffiana var. porrifolia (Lindl.) Ames & Correll 1943
References W3 Tropicos, Kew Monocot list , IPNI ;
* Gen. Sp. Orchid. Pl.: 467 Lindley 1840
Revis. Gen. Pl. 2: 664 Kuntze 1891 as Gyrostachys porrifolia
Man. Bot. San Francisco: 306 Greene 1894 as Orchiastrum porrifolium
Bull. Torrey Bot. Club 32: 610 Rybd. 1905 as Ibidium porrifolium
Studies in the Family Orchidaceae Vol 1 Ames 1905 drawing fide;
Bot. Mus. Leafl. 11: 1 Correll 1943 as S romanzoffiana var. porrifolia
The Native Orchids of the United States and Canada Luer 1975 drawing/photos fide;
Wild Orchids of the Pacific Northwest and the Canadian Rockies PM Brown 2006 photo/drawing fide;
Orchid Digest Vol 74 #2 2010 photo fide;
AOS Bulletin Vol 86 #2 2017 photo good;
--------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------------------------------
