“This guide is intended to provide the tools to identify and monitor wild bees and other floral visitors in the Puget Sound Region.”
Keyword: Key
Oregon State University: Landscape Plants
The site features images and information on over 900 landscape plants (mostly woody) listed in alphabetical order by genus. Use the Plant Search to filter by attributes such as flower color or leaf shape to narrow down the possibilities.
Oregon State University: Trees of the Pacific Northwest
This site provides assistance with identifying common conifers in the Pacific Northwest. It includes information about specific genera, user-friendly dichotomous keys, and a mystery tree section where you can test your knowledge.
Plants of Washington Identification Key
Help for identifying plants, trees and lichens of Washington. This simple random access key can help you identify an unknown plant by narrowing the number of species that could possibly match your plant.
Weed Identification
Enter information about an unidentified weed, and compare it with photographs and text descriptions of weeds that share similar characteristics.
What Tree is That?
The National Arbor Day Foundation’s version of a tree identification tool. A series of pictures and questions are used like a dichotomous key to identify mystery trees by process of elimination. A very good animated interactive tutorial illustrates how to use a dichotomous key.
UConn Plant Database
This site includes information about trees, shrubs and vines that do particularly well in the Northeastern United States. You may search for plants by attribute or characteristic, or you may browse by Latin name. Each entry has a fact sheet, photos and a list of cultivars, if available.
Virginia Tech Dendrology Tools
If you have an unknown tree specimen, you can try to figure out what it is by using one Virginia Tech’s leaf or twig keys.
Interactive Keys – Descriptions, Illustrations, Interactive Identification, and Information Retrieval from DELTA Databases
This site makes available numerous data sets of plants and animals that work with a free program called IntKey. First download and install this small program, then download a data set such as Grass genera of the world or Flora of China, which will trigger the program to run. By selecting certain traits, such as leaf shape, non-conforming taxa are eliminated.