Rattlebush

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any of various plants of the genus Baptisia.
  2. 2
    Any of various plants of the genus Crotalaria.
  3. 3
    A plant of species Sesbania drummondii, native to the southeastern United States.

Synonyms

All synonyms
false blue indigo

Etymology

From rattle + bush, because of the rattling of the seeds in the inflated fruits.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.