4H Twig Key
1) Foliage is evergreen . ... . .2
1) Foliage is deciduous . .... . .4
2) Needles in bunches .... .. 3
2) Needles are singular . ... eastern hemlock
3) 2 needles per bunch ..Virginia pine
3) 5 needles per bunch ...white pine
4) Leaf scars are opposite ... .. 5
4) Leaf scars are alternate ... .. 9
5) Leaf scars broad ... ash
5) Leaf scars are narrow . 6
6) The twig is purple or green... .... . 7
6) The twig is not purple or green .. ... . 8
7) The leafscars are raised ... flowering dogwood
7) The leafscars are not raised ... . .... boxelder
8) The buds are red .. ....................red maple
8) The buds are brown ... sugar maple
8) The buds are purple or green Norway maple
9) The twig has spines ......black locust
9) The twig has no spines ... ...10
10) The twig has many end buds .. .....11
10) The twig has one end bud ... .. ...13
11) The end buds are blunt ..white oak
11) The buds are pointed . ..... .. ...12
12) The end buds are angular (like pyramids) ... .black oak
12) The end buds are not angular .. ..chestnut oak
13) The leaf scars look like monkey faces .. .. ...14
13) The leaf scars do not look like monkey faces . ...16
14) The end bud looks like a Hershey kiss . .. . ...15
14) The end bud does not look like a Hershey kiss ...black walnut
15) The twig is fuzzy ... .mockernut hickory
15) The twig is not fuzzy . pignut hickory
16) The end bud looks like a duck bill ...tulip poplar
16) The end bud does not look like a duck bill . .17
17) The twig is green ... ..sassafras
17) The twig is not green . .18
18) The twig stinks black cherry
18) The twig does not stink . .sweet cherry