Arch. Soc. Zool.-Bot. Fenn. "Vanamo" 14: 131 (1960). Type locality: Canada, Newfoundland, Placentia West District, 4 miles northwest of Long Pond, 1956, T. Ahti 108 (H - holotype; BM, CANL, MSC, NFLD, TNS, UPS, US, WIS - isotypes).
Type locality: Canada, Newfoundland, Placentia West District, 4 miles northwest of Long Pond, 1956, T. Ahti 108 (H - holotype; BM, CANL, MSC, NFLD, TNS, UPS, US, WIS - isotypes).