wild indigo

noun

any of several plants belonging to the genus Baptisia, of the legume family, especially B. tinctoria, having yellow flowers.

Origin of wild indigo

An Americanism dating back to 1735–45

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for wild indigo

wild indigo

noun

any of several North American leguminous plants of the genus Baptisia, esp B. tinctoria, which has yellow flowers and three-lobed leaves

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012