eastern poison ivy
[Toxicodendron radicans var. divaricatum (Greene) Barkl.]
PLANT: Vines climbing with aerial roots or shrubs. LEAVES: with puberulent petioles, shorter than the terminal leaflet; leaflets narrowly obovate, 2-3 times as long as wide; margins entire to notched. NOTES: See also parent taxon. Canyon bottoms and adjacent slopes in riparian zones and Madrean woodlands; Cochise, Pima, and Santa Cruz cos.; 1390-1820 m (4600-6000 ft); May-Aug; se AZ and w Mex. REFERENCES: John L. Anderson, 2006, Vascular Plants of Arizona: Anacardiaceae. CANOTIA 3 (2): 13-22.