Coefficient of Conservatism:
Coefficient of Wetness:
B. S. Slaughter
Moist to rather dry coniferous or mixed forests, often in moss or litter of conifer needles.
The leaf blades are only rarely as long as 3–4 cm, whereas they are longer in P. elliptica and, often, in P. americana and P. asarifolia. The bracts in the raceme may overlap in size those of P. elliptica, P. americana, and P. asarifolia, but they tend to be more often minutely toothed or papillose on the margins and to be partly adnate to the pedicels.