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Poison ivy, poison oak and poison sumac
Poison ivy, poison oak and poison sumac
By Donald M. Crooks
Poison ivy, oak & sumac
Poison ivy, oak & sumac
By National Institute of Allergy and Infectious Diseases (U.S.)

Poison-ivy, western poison oak, poison sumac
By Gerald A. Mulligan

Poison-ivy and poison-sumac
By Glen Spelman Winterringer
Poisonivy and poisonsumac
Poisonivy and poisonsumac
By William Morehouse Harlow

Poison ivy and swamp sumach
By Annie Oakes Huntington

A Field Guide to Poison Ivy, Poison Oak, and Poison Sumac
By Susan Carol Hauser
Poison ivy, poison oak and poison sumac
Poison ivy, poison oak and poison sumac
By
Poison ivy, poison oak, and poison sumac
Poison ivy, poison oak, and poison sumac
By Donald M Crooks

The poison ivy, oak & sumac book
By Thomas E. Anderson
Things you should know about poison ivy, poison oak, poison sumac in North Carolina
Things you should know about poison ivy, poison oak, poison sumac in North Carolina
By James W. Hardin
Poison ivy, oak & sumac
Poison ivy, oak & sumac
By National Institute of Allergy and Infectious Diseases (U.S.)
Ivy and sumac poisoning
Ivy and sumac poisoning
By United States. Public Health Service.
Poison ivy and poison sumac and their eradication
Poison ivy and poison sumac and their eradication
By C. V. Grant

Leaflets three
By United States. Department of Agriculture. Press Service

Is it poison ivy?
By Joan Raysor,Joan R. Darlington

Dangerous plants
By United States. Department of Agriculture. Radio Service

Poison-ivy, poison-oak and poison sumac
By D. M. Crooks

Poison ivy, pets & people
By Heidi Ratner-Connolly

Poison ivy, poison oak, and poison sumac
By Dayton L. Klingmann
Poison ivy and poison sumac
Poison ivy and poison sumac
By W. C. Muenscher,John Merriam Kingsbury
Poison ivy and poison sumac
Poison ivy and poison sumac
By Hermon F. Titus,Mass.) Newton Historical Society (Newton
On the active principle of Rhus toxicodendron and Rhus venenata
On the active principle of Rhus toxicodendron and Rhus venenata
By Franz Pfaff
Two new species of poisonous sumachs from the states of Rhode Island and Florida
Two new species of poisonous sumachs from the states of Rhode Island and Florida
By Edgar Alexander Mearns