Woodland Pinedrops (Pterospora andromedea) are a nonphotosynthetic, parasitic plant that obtains nutrients from its host via mutualistic fungal hyphae that form connections between the roots of the parasite and its host plant. Found at the Mer Bleue Conservation Area, Ottawa, Ontario, Canada. Ramsar site no. 755. Conservation Status: imperiled (S2) in Ontario, CA (NatureServe).
''Pterospora'', commonly known as pinedrops, woodland pinedrops, Albany beechdrops, or giant bird's nest is a North American genus in the subfamily Monotropoidiae of the heath family, and includes only the species ''Pterospora andromedea''. It grows in coniferous or mixed forests. It is widespread across much of Canada as well as the western and northeastern United States to and northern Mexico . Along with ''Monotropa'' it is one of the more frequently encountered members of the Monotropoidiae.