Vascular plants of Continental Northwest Territories, Canada /

by Porsild, A. E. (Alf Erling), 1901-1977
Published 1980

Botany of southeastern Yukon adjacent to the Canol Road /

by Porsild, A. E. (Alf Erling), 1901-1977
Published 1951

Materials for a flora of Central Yukon Territory /

by Porsild, A. E. (Alf Erling), 1901-1977
Published 1975

Materials for a flora of the continental Northwest territories of Canada /

by Porsild, A. E. (Alf Erling), 1901-1977
Published 1943

The vascular plants of the Western Canadian Arctic Archipelago.

by Porsild, A. E. (Alf Erling), 1901-1977
Published 1955

Illustrated flora of the Canadian Arctic Archipelago /

by Porsild, A. E. (Alf Erling), 1901-1977
Published 1964