Senna occidentalis | Platanus occidentalis | Russula solaris | Russula | Thuja occidentalis | Sarcoscypha occidentalis | Russula nigricans | Osmorhiza occidentalis | Linderiella occidentalis | Juniperus occidentalis | Euthamia occidentalis | Emblemariopsis occidentalis | Anemone occidentalis |
DNA recovered show it forms mycorrhizal associations with Russula solaris and R. occidentalis, in keeping with the observation that many members of the genus form relationships with fungi of the family Russulaceae.