TOXIGEN: A MEKA Application for Computer-Aided Identification of Toxic Flowering-Plant Genera Found in North America North of Mexico with Printed Illustrations for Visual Confirmation (Online)
Compiled and edited by T. D. Jacobsen, D. M. Kiger, R. W. Kiger, F. H. Utech and E. R. Smith. 1993. 120 pp.; 336 b&w figs.; 8 ½ x 11". Stiff paper cover. ISBN 0-913196-58-4.
An online identification system and directory for toxic plants, TOXIGEN was made possible by funding from the Vira I. Heinz Endowment and was used at the Pittsburgh Poison Center.