11 Introduction to Dichotomous Keys. Describe the characteristics of dichotomous keys. A dichotomous key is a useful tool for the identification of things not known to the observer; for example, unfamiliar plant species. The typical dichotomous key, as shown in the example below, is made up of a series of descriptions, features or characteristics, arranged in pairs Related searches for plant dichotomous key kids plant dichotomous key pdfdichotomous key plant guideplant identification dichotomous key onlinetree taxonomic keydichotomous key for flowering plantsshrub dichotomous keydichotomous key plant identificationplant dichotomous key activity