Sears, Christopher J. (2008). "Morphological discrimination of Platanthera aquilonis, P. huronensis, and P. dilatata (Orchidaceae) herbarium specimens". Rhodora. 110 (944): 389–405. doi:10.3119/07-24.1. S2CID86405178.
"Platanthera aquilonis". Go Orchids. North American Orchid Conservation Center. Retrieved 16 January 2022.
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Sears, Christopher J. (2008). "Morphological discrimination of Platanthera aquilonis, P. huronensis, and P. dilatata (Orchidaceae) herbarium specimens". Rhodora. 110 (944): 389–405. doi:10.3119/07-24.1. S2CID86405178.