Catalpa bignonioides (USA)

Catalpa bignonioides Walter, Fl. Carol. 64 1788. (syn: Bignonia catalpa L.; Bignonia spectabilis Salisb.; Catalpa arborea Baill.; Catalpa bignonioides f. aurea Bureau …….; Catalpa catalpa (L.) H.Karst. [Invalid]; Catalpa communis Dum.Cours.; Catalpa cordifolia Moench; Catalpa syringifolia Sims; Catalpa syringifolia var. koehnei Hesse; Catalpa ternifolia Cav.; Catalpa umbraculifera Ugolini; Catalpium amena Raf.);

E. Texas to S. Georgia as per WCSP;

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Tree seen in Atlanta during my visit in Oct,18.

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My best suggestion would be Catalpa bignoniodes aka Southern Catalpa. There is a tree that is sometimes confused for Catalpa – Paulownia tomentosa, but that one has very ‘ sticky’ leaves. 

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References:

Catalogue of Life  The Plant List Ver.1.1  WCSP  IPNI
 Wikipedia Native Plants of North …  Missouri Botanical Garden