Catalpa (Catalpa), too spelled Catawba, occurs as genus of mostly deciduous trees of the United States, West Indies, and east Asia, in the flowering plant family Bignoniaceae.

Indian bean develop to 10-25 m tall, & may be recognized by their big heart-cordate to 3-lobed leaves, showy white or yellow flowers in wide panicles, & in the fall by their 20-50 cm hanker fruits which resemble a slender bean pod, containing numerous little flat seeds, to each one seed getting 2 thinly wings to help wind diffusion.

Them North American species, Southern Catalpa (Catalpa bignonioides), & Northern Catalpa (Catalpa speciosa) keep close at hand been widely planted outside their natural ranges when ornamental trees for their showy flowers. Northern & Southern Catalpa may be similar inside appearance, however a northern coinage has slightly big leaves, flowers, & bean pods. Flowering starts fallowing 275 growing degree days. A Yellow Catalpa (Catalpa ovata) from either China, with straw flowers, is too planted outside its natural range for decorative purposes.

A title derives from either a Catawba Native American name catawba for these trees (the tribal totem), with a spelling Indian bean existence due to the transcription error on the a portion of the describing phytologist (Scopoli) making the number 1 formal scientific description of the genus. A system of botanical naming state that the spelling utilized in the formal scientific description has to become retained for the scientific title. A title inside vulgar utilize has super largely (though non entirely) followed Scopoli's inaccurate transcription, sustaining catawba however around utilize in a few areas of a United States, virtually all particularly within the trees' native range.

A bean-rather seed pod is the origin of the guide common title Indian Bean Tree for C. bignonioides.

A tree is the food plant of the Catalpa Sphinx moth, the leaves existence eaten per caterpillars.

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