1

Leaves needle like or scale like

Go to 2

Leaves flat with veins

Go to 7

2

Scale like

Go to 3

Needles

Go to 4

3

Scales, usually scratchy

Juniper

Scales, not scratchy

Cedar Arborvitae

4

Needles single

Go to 5

Needles in groups

Go to 6

5

Stiff prickly needles

Spruce

Soft pliable needles

Fir

6

Needles, bundles 2 to 5

Pine

Needles, 14 to 30 per cluster

Larch

7

Leaf Compound

Go to 20

Leaf Simple

Go to 8

8

Venation (viens) pinnate

Go to 9

Veins palmate

Go to 18

9

Leaf margin entire

Go to 10

Leaf margin sawtoothed or lobed

Go to 11

10

Leaf shape lanceolate, silvery colored

Russian Olive

Leaf shape elliptical

Willow

11

Leaf margin sawtoothed

Go to 12

Leaf margin lobed

Go to 15

12

Leaf margin singly toothed

Go to 13

Leaf margin doubly saw toothed

Go to 14

13

Leaf margin serrate

Go to 16

Leaf margin crenate

Go to 17

14

Leaf margin doubly serrate,
shape ovate, leaf base uneven

American Elm

Leaf margin doubly serrate,
shape ovate, leaf base even

Paper Birch

15

Leaf margin cleft lobed

Black Oak

Leaf margin round lobed

White Oak

16

Leaf shape lanceolate

Peach Leaf Willow

Leaf shape elliptical

Cherry

17

Leaf shape deltoid

Lombardy Popular

Leaf shape ovate

Black Cottonwood

18

Five veins, leaf margin cleft lobed

Go to 19

Three veins, leaf margin cleft lobed

Sycamore

19

Deeply lobed, silver color underneath

Silver Maple

Shallow lobed

Norway Maple

20

Leaflets pinnate

Go to 21

Leaflets palmate

Horse Chestnut

21

Leaflets ovate, serrated

Black Walnut

Leaflets, margin entire, or with
tiny serrations

Locust