indigo broom indigo blue • indigo brown · · · Info · Definitions · Synonyms · Characters · · indigo broom · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) much-branched erect herb with bright yellow flowers; distributed from Massachusetts to Florida. Synonyms: indigo broom, horsefly weed, rattle weed, Baptisia tinctoria. · · Noun Definition 1 Synonyms · · · horsefly weed · · Synonym 1 rattle weed · · Synonym 2 baptisia tinctoria · · Synonym 3 Characters · · space U+0020 b latin small letter b U+0062 d latin small letter d U+0064 g latin small letter g U+0067 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072