Week 3 Keyed Trees

1’ Leaves <8 in. Long, not sword-shaped, leaves simple or compound; leaf veins either parallel or netted
2’ Tree is conifer or broad-leaved tree, not a palm; leaves arise from branches
3’ Leaf blades broad and flattened
5’ Leaves simple
8’ Leaves attached alternately
9’ Leaf tip pointed or rounded, not notched or truncate

1. Leaf margin smooth
   Group 8 — Trees with alternate, simple, smooth leaves
   1’ Flower clusters not resembling bottle brushes; tree without clusters of sessile, woody fruits persisting along stem
   3’ Leaves not phyllodes; tree without the combination of characters described above 4’ Most leaves 3/4 in. wide or greater
   16’ Tree without milky white sap
   18’ Leaves unscented or smelling medicinal or spicy when crushed (but not lemon- scented); bark varying

2. Leaves with translucent dots when held to the light

3. Petals fused into a bud cap; fruit a woody capsule
   Eucalyptus, also called Gum Trees (Eucalyptus spp.)

1’ Leaves <8 in. Long, not sword-shaped, leaves simple or compound; leaf veins either parallel or netted
2’ Tree is conifer or broad-leaved tree, not a palm; leaves arise from branches
3’ Leaf blades broad and flattened

1. Leaves compound
   6’ Leaves pinnately compound
   7’ Leaves attached alternately
   Group 6 — Trees with pinnately and bipinnately compound, alternate leaves
   1’ Leaflets 5 or more
   3’ Leaves pinnately compound
   11’ Leaves odd pinnate
   18’ Leaflet margin smooth

2. Leaflets stalked
   25’ Leaflet tip rounded
   27’ Leaflet papery; tree deciduous; most leaflet tips not notched
   28’ Leaves with <20 leaflets; flowers white or pink; fruit not winged
   Black Locust (Robinia pseudoacacia)