Fruit key and twig key to trees and shrubs fruit key to northeastern trees; twig key to the deciduos wood plants of northeastern north america - Harlow, William Morehouse (New York Dover, 1946)
"New Dover ed. first published in 1959." "an unabridge and unaltered republication of the first edition of fruit key to northeastern trees and the fourth revised edition of Twig Key to the Deciduous Woody Plants of Eastern North America."
Keywords: Trees -- North America; Shrubs -- North America; Fruits