This example of a dichotomous key is from Muenscher’s Keys to Woody Plants: An Expanded Guide to Native and Cultivated Species.   Edward A. Cope, 2001.

Some terms used below: scabrous - rough to the touch; pubescent- hairiness; short, soft hair; pith - spongy, parenchymatous central tissue in some stems and roots; glabrous – smooth, hairless


Example of a dichotomous key: Dogwood, Cornus