Comments: According to Luteyn (1995) Flora Neotropica Monograph 66 the species epithet is spelled as hypopitys. Voss (Flora of Michigan, vol. 3, 1996) and Kartesz (1994 checklist) spell this name 'hypopithys', the usage accepted here. Voss notes that the genus Hypopitys, into which this plant is sometimes placed, has an illegitimate name, citing Wood (J. Arnold Arboretum 42: 68, 1961). Closely related to the common Monotropa uniflora.