Simple leaves have a single leaf on a petiole, or stem, while compound leaves have more than one leaflet on a petiole. This unknown leaf can be identified using the dichotomous key. Compound Leaves Simple Leaves * Unknown Leaf Identification SA Characteristic ia Compound leaf 1b Simple leat Za Leal pointed at the tip 7b Leal rounded at the tip Ja Leal length four or more times greater than width 3b Leaf length less than four times the width Leal ponted at the tip 4b Leaf rounded at the tip Ungnada speciosa Sophora cundiilora Swix nigra Arbutus alapensis Quercus lacew Which tree does the unknown leaf come from? A. Ungnadia speciosa
B. Sophora secunditfora
C. Sali nigra
D. Quercus laceyi​