PLANT ADAPTATIONS

EVERGREEN FOREST

• Plants have leaves that stay on for all seasons.
• When the leaves fall off they are replaced by new ones
• Plants are always green (hence the name).

DECIDUOUS FOREST

• During fall and winter leaves are colorful
• The rest of the year they are green due to the presence of chlorofil.
• The difference between deciduous and evergreen are evergreen trees never run out of leaves and
• Are always green.

DECIDUOUS FOREST EXAMPLE

EVERGREEN EXAMPLE

DICHOTOMOUS KEY BUR OAK

• Leaves not needle like and scale like
• Leaves alternate
• Leaves are simple
• Leaves are lobed
• Outline of leaf elliptical d broadest above the middle.

SCOTCH PINE DICHOTOMOUS KEY

• Leaves are needle like.
• Leaves long and narrow and are in bundles.
• Conclusion: scotch pine

SYCAMORE LEAVES DICHOTOMOUS KEY

• Leaves not needle like or scale like
• Leaves alternate
• Leaves are simple
• Leaves are lobed
• Outline of leaf nearly circular

AMERICAN ELM DICHOTOMOUS KEY

• Not needle like or scale like
• Leaves alternate
• Leaves unlobed
• Leaf margin is toothed
• Leaf margin elliptical and with double teeth.

SILVER MAPLE DICHOTOMOUS KEY

• Leaves not needle like or scale like
• Leaves opposite
• Leaves 5-lobed
• Conclusion: silver maple.