ca·tal·pa (kə-tălpə, -tôl-)
Any of various usually deciduous trees of the genus Catalpa of North America, the West Indies, and East Asia, especially C. bignonioides or C. speciosa of the United States, having large heart-shaped leaves, showy clusters of white flowers, and long slender pods.
[Creek katałpa : ka-, head + tałpa, wing (from the shape of its flowers).]
(click for a larger image)catalpa
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.