Technical Abstract: The series of short articles provides a comprehensive review for the reference text, "Clinical Veterinary Toxicology." The subject matter is an invited contribution whereby the source, toxicokinetics, mechanism of action, toxicity and risk factors, clinical signs, clinical pathology/lesions, diagnostic testing, treatment/prognosis, and prevention and control of selected poisonous plants is discussed. The specific poisonous plants include selected species containing the piperidine, pyridine, quinolizidine and Veratrum-type steroidal alkaloids. These articles are intended to provide information to benefit students, clinicians, practitioners, teachers, producers, extension agents, etc.