“... often used common name, refers to a resemblance to elder (Sambucus) and ... young saplings of
Boxelder bear a remarkable resemblance to poison ivy (Toxicodendron ... ”
“... vegetative reproduction of canopy dominants plus box elder (Acer negundo ... California grape
(Vitis californica ) and poison oak (Toxicodendron diversilobum) are ... ”