The American Penstemon Society

Information in this section is presented in 31 different tables (documents), with their organization based on the botanical classification system (taxonomy) for the Genus Penstemon.

Taxonomy practice places each species of a plant within a genus and then into successively smaller categories based on shared characteristics of those species within a genus. The largest category of a genus is called a subgenus; following that, the categories are section and subsection. The arrangement looks like this:
 Genus
    Subgenus
      Section
        Subsection

The Genus Penstemon is divided into six subgenera. The Cultivation Tables cover four of these subgenera and all but two species neither of which has been cultivated. To get to a table, click the link as given below in the Index.

If you have a name of a Penstemon but do not know it's classifcation, pick the Penstemon name below to find it. Then you can use the table above to download the related classification document:

UNDER CONSTRUCTION