Bruce Crawford, Manager of Horticulture for the Morris County Park Commission, writes in this article about Jeffersonia diphylla (common name, Twinleaf), elaborating about its description and history as well as using it as a primer on botanic naming.
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Botanical plant names often prove to be a stumbling block for gardeners. They are meant to impart descriptive details about the plant, yet understanding the Latin or Greek roots of the names can prove troublesome. To add to the confusion, in some instances the botanical name honors individuals who were important in horticulture. This can be equally as mystifying since many of these honored individuals lack widespread recognition. However, one plant that should instinctually draw recognition for the honoree is Jeffersonia diphylla, commonly called Twinleaf. The name pays tribute to Thomas Jefferson, the third president of the US and the principal author of the Declaration of Independence.
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