ABSTRACT
Plant Description Some 300 species of Thalictrum occur throughout the northern temperate zone. Branching perennials, growing from woody rhizomes or tuberous roots, Thalictrum have pinnate, compound leaves, and colorful flowers in terminal panicles or racemes (Figures 385 and 386).
Toxic Principle and Mechanism of Action Thalictrum species contain a large number of alkaloids and glycosides in addition to the irritant glycoside ranunculin that is converted to protoanemonin when the plant tissues are chewed and macerated.1
