Author

Helen Margaret Gilkey

13 books found

Cover of Gilkey's Weeds of the Pacific Northwest

Gilkey's Weeds of the Pacific Northwest

Helen Margaret Gilkey · First published 1980

Cover of Handbook of Northwestern plants

Handbook of Northwestern plants

Helen Margaret Gilkey, Lloyd D. Johnston · First published 1967

Cover of Winter twigs

Winter twigs

Helen Margaret Gilkey, Patricia L. Packard · First published 1962

Cover of Handbook of Northwest flowering plants

Handbook of Northwest flowering plants

Helen Margaret Gilkey · First published 1936 · Latest edition 1961

Placeholder cover for Morton Eaton Peck

Morton Eaton Peck

Helen Margaret Gilkey · First published 1960

Placeholder cover for Livestock poisoning weeds of Oregon

Livestock poisoning weeds of Oregon

Helen Margaret Gilkey · First published 1958

Placeholder cover for Weeds of the Pacific Northwest

Weeds of the Pacific Northwest

Helen Margaret Gilkey · First published 1957

Placeholder cover for Tuberales

Tuberales

Helen Margaret Gilkey · First published 1954

Placeholder cover for A new Fritillaria from Oregon

A new Fritillaria from Oregon

Helen Margaret Gilkey · First published 1951

Placeholder cover for Northwestern American plants

Northwestern American plants

Helen Margaret Gilkey · First published 1945

Placeholder cover for T̲u̲b̲e̲r̲a̲l̲e̲s̲ of North America

T̲u̲b̲e̲r̲a̲l̲e̲s̲ of North America

Helen Margaret Gilkey · First published 1939

Placeholder cover for A spring flora of northwestern Oregon

A spring flora of northwestern Oregon

Helen Margaret Gilkey · First published 1929

Placeholder cover for Oregon mushrooms

Oregon mushrooms

Helen Margaret Gilkey · First published 1911