Pyroloideae is a subfamily of plants in the Ericaceae family. It was formerly treated as a separate family, Pyrolaceae.  It has also been treated as the tribe Pyroleae within the subfamily Monotropoideae. It consists of four genera: Chimaphila containing 5 species, Pyrola containing 30 species and Moneses and Orthilia which are monotypic. They are mixotrophic, gaining nutrition from photosynthesis, but also from mycorrhizal fungi. 
- Stevens, P.F. (2001 onwards). " Ericaceae. Angiosperm Phylogeny Website. Retrieved 2014-12-29.
- Liu, Z.; Wang, Z.; Zhou, J.; Peng, H. (2010). "Phylogeny of Pyroleae (Ericaceae): implications for character evolution". Journal of plant research. 124 (3): 325–337. doi: 10.1007/s10265-010-0376-8. PMID 20862511.
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