Scirpus validus
Vahl
Record number: 28905. Place of collection: Canada; Saskatchewan; Pike Lake (N51°54' W106°49'). Date of collection: 28 August 1936. Associated organism: Hypohelion scirpinum. Collector: Russell, R.C..
Record number: 59478. Place of collection: Canada; Ontario; Lake Huron. Date of collection: December 1911. Associated organism: Puccinia obtecta. Collector: Dearness, J..