Coefficient of Conservatism:
Coefficient of Wetness:
LAKE HURON GREEN ORCHID
Fens, open cedar swamps, openings in wet coniferous, deciduous, and mixed forests, sedge meadows, lake shores and river banks.
Platanthera huronensis flowers have a sweet fragrance, in contrast to those of P. aquilonis, which are essentially scentless, and the lip of P. huronensis is paler, often a greenish-white, while the lip of P. aquilonis is greenish yellow. However, the two are quite difficult to distinguish with dried specimens. Though variable in size, P. huronensis can be stouter and taller than P. aquilonis, with plants to 1 m tall with leaves to 6 cm broad occurring in vigorous clumps in sedge meadows and peaty swales along the northern shores of Lakes Michigan and Huron. No specimens of P. aquilonis in MICH are larger than 60 cm tall with leaves to 3.7 cm wide. Catling & Catling (1997) suggest that the polyploid P. huronensis is derived from a hybrid of P. dilatata and P. aquilonis (as P. hyperborea). See Sheviak (1999), Wallace (2003), and Sears (2008) for further information.