Deciduous Shrubs & Trees of Wenatchee Watershed  Susan Ballingers’ photo field identification guide to Wenatchee watershed native shrubs & trees with a focus on key ID features.  Includes the “learn 10” species.

Plants of Washington image gallery. University of Washington Burke Museum.  This easy to use photo guide is searchable by common or scientific name.

Common Plants of the Okanogan and Wenatchee National Forests.  2002.  An illustrated picture key to common trees, shrubs, wildflowers and grasses.

Native Plant Photo ID Cards for common trees, shrubs, and wildflowers of Washington.  Washington Native Plant Society.

Biogeography of Quaking Aspen (Populus tremuloides) by Douglas W. Johnson.  San Francisco State University.

Black Cottonwood (Populus trichocarpa) life history narrative.  Oregon State University Oregon Wood Innovation Center.

An article about riparian habitats by Susan Ballinger, Neotropical Migrants Raising Their Young in Our Canyons

An article about the fun of exploring local river riparian habitats by Susan Ballinger,  Head to the River for Fun in the Mud!