Kingdom Plantae – plants
Subkingdom Viridiplantae – green plants
Infrakingdom Streptophyta – land plants
Division Tracheophyta – vascular plants
Subdivision Spermatophytina – seed plants
Class Pinopsida – conifers
Order Pinales – pines
Family Taxaceae – yews
Family member characteristics
Symbol from: https://www.health.qld.gov.au/poisonsinformationcentre/plants_fungi/keysymbols.asp
Florida Poison Information Center Plant Toxicity Categories
4 Major Toxicity. Ingestion of these plants can result in severe toxic reactions and injury to major organs like the heart, kidney, liver and nervous system. They can also result in other life threatening symptoms like seizures or hallucinations. Although these effects are usually seen with large ingestions of plant material, consuming small amounts should also be considered potentially dangerous.
6. Toxic to Animals. These plants known to be toxic to animals.
University of Arkansas System Toxicity Categories
CAUTION: Toxicity Category 1 - Plants can cause systemic toxicity varying from mild abdominal cramping to serious cardiac complications.