
This week for Know Your Trees, GM is exploring the catalpa. While the city’s records indicate that there is only a single catalpa in Georgetown (on 28th across the street from Evermay) there are actually a handful of beautiful catalpas on the campus of Georgetown Visitation (just down the hill from the tennis courts). They are in bloom right now and are quite a sight.
Catalpas come in two varieties: southern and northern. Both are indigenous to the United States, with the northern being native to the Ohio and Mississippi river valleys in the midwest, and the southern being native to the deep south. The northern catalpas tend to be bigger and have leaves with longer points. They’re not very easy to distinguish though. (The catalpa on 28th St. is identified as a southern catalpa, for the record).
The most distinguishing feature of the catalpa (whether northern or southern) is the leaf shape:

They have large elongated valentine heart shapes. The leaves in this picture (from Georgetown Visitation) are at least nine inches long. GM believes they are southern catalpas, but he’s not certain. Continue reading →
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