C.
J.
Sheviak
Platanthera huronensis in the North, and the Occurrence of P. hyperborea in North America. The Native Orchid Conference Journal 8, 14-18.
, 2011. A New and Rare Spiranthes from the Sierra Nevada. The Native Orchid Conference Journal 9, 1-6.
, 2012. A Cytogeographic Survey of the Spiranthes romanzoffiana Cham. Complex and Its Taxonomic Implications. The Native Orchid Conference Journal 10, 1-22.
, 2013. Developmentally Variable Lip Color in Cypripedium parviflorum Salisb.: More than a Form?. The Native Orchid Conference Journal 10, 19-20.
, 2013. Platanthera (Orchidaceae) in the Pacific Northwest [WWW Document]. Botanical Electronic News [BEN]. URL: http://www.ou.edu/cas/botany-micro/ben/ben292.html
, 2002.