Natural Resources Conservation Service

United States Department of Agriculture

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Plant Identification: Tools and Guides

Common Weeds in Puerto Rico and U.S. Virgin Islands
Malezas Comunes en Puerto Rico e Islas Vírgenes Americanas
Forb Seedling Identification Guide for the Inland Northwest. (PDF; 21M)
Seedling ID Guide for Native Prairie Plants (PDF; 2.3 MB) - The goal of this guide is to help identify native plants at various stages of growth.
Conservation Plants Pocket ID Guide (PDF; 3.7 MB) -The purpose of this guide is to help you identify come commonly used conservation plants.
Conservation Trees and Shrub Pocket ID Guide (PDF; 5.7 MB) -This book was developed by the USDA Natural Resources Conservation Service as an aid in identifying trees and shrubs and to aid in their use for conservation purposes.

Field Guide for the Identification and Use of Common Riparian Woody Plants of the Intermountain West and Pacific Northwest Regions (PDF; 9.8 MB) -This Field guide is intended as a pocket field guide for the identification of many of the common native woody plants that are found in the riparian areas in the Intermountain West and Pacific Northwestern regions of the United States.
Culturally Significant Plants