ABSTRACT

Several species of Baptisia are recognized commonly and have been introduced as garden ornamentals includeding: Baptisia alba-white wild indigo. B. australis-blue indigo, blue false indigo. B. bracteata-plains wild indigo. B. tinctoria-yellow wild indigo

Toxic Principle and Mechanism of Action Quinolizidine alkaloids similar to those found in Laburnum species (Golden chain tree) are found in all parts of the plant.1 Cytisine is the primary alkaloid present and its primary effect is upon the nicotinic acetylcholine receptors.2 Consequently, affected animals will show signs of excessive salivation, anorexia, muscle tremors, abdominal pain, increased heart rate, and depressed respiration.