Title: Field Guides: Trees Provider: eNature.com Subject Heading/s: Trees--Identification. LC Class: QK474.8 Reference Category: Guides Description: Search by name or type for Description, Habitat, Range, etc. with zoomable color photos.

Title: Field Guides: Wildflowers Provider: eNature.com Subject Heading/s: Wild flowers--Identification. LC Class: QK110 Reference Category: Guides Description: Search by name or type for Description, Habitat, Range, etc. with zoomable color photos.

Title: National Directory: Recommended Native Plant Species Provider: Lady Bird Johnson Wildflower Center Subject Heading/s: Plants, Trees, Horticulture. LC Class: QK1 Reference Category: Compendiums Description: Select Scientific or Common Name, View by Family or Search by State.

Title: Plant Fact Sheets Provider: College of Agriculture and Life Sciences at North Carolina State University Subject Heading/s: Plants, Trees, Horticulture. LC Class: QK1 Reference Category: Guides Description: Search by common or scientific name for trees, shrubs, and other plants. Size, shape, and habitat are given as well as color photos.

Title: Plants Database Provider: U.S. Department of Agriculture Subject Heading/s: Plants; Botany. LC Class: QK1 Reference Category: Databases Description: "Includes . . . identification information, species abstracts, distributional data, crop information, plant symbols, plant growth data, plant materials information, plant links, references, and other plant information."

Title: Tree Fact Sheets Provider: Dendrology at Virgina Tech Subject Heading/s: Trees--Identification. LC Class: QK474.8 Reference Category: Guides Description: "The Dendrology homepage at Virginia Tech is where to find tree identification fact sheets on over 450 species of trees, as well as lots of other tree information." Descriptive text is accompanied by color photos of trees and their leaves plus an audio file giving the pronunciation of the scientific name.