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TREE ANATOMY
TYPES OF TREES
FORESTRY
HOW DOES IT WORK?
DA' TRUNK
100
Perennial, woody plants that grow to be more than 20 feet tall and have a single main stem.
What are TREES?
100
Flowering, seed plants.
What are ANGIOSPERMS?
100
Removing or harvesting trees.
What is DEFORESTATION?
100
These are used to estimate the age of a tree.
What ANNUAL GROWTH RINGS?
100
The rough, outer covering of a tree.
What is the BARK?
200
The top portion of a tree including the leaves, twigs, flowers, and fuit.
What is the CROWN?
200
These trees loose their leaves in the fall and winter.
What are DECIDUOUS TREES?
200
Forestry companies working with nature to make sure that forests are thriving and healthy for future generations.
What is SUSTAINABLE FORESTRY?
200
These are used to estimate the age of a tree branch.
What are BUD SCALE SCARS?
200
The inner core of the trunk made up of old, dead wood layers.
What is the HEARTWOOD?
300
Buds that grow at the end of a twig and allow for the stem to grown in length.
What are TERMINAL BUDS?
300
"Softwood" trees.
What are GYMNOSPERMS?
300
A tree harvesting method where all the trees from a designated area are harvested at once.
What is CLEAR CUT?
300
Where new growth occurs on a tree.
What is the TERMINAL AREA?
300
The inner bark is made up of this type of tissue that transports glucose from the leaves to the roots.
What is PHLOEM TISSUE?
400
Buds on the side of a twig that allow for the stem to "branch out".
What are LATERAL BUDS?
400
Nicknamed "kings of the forest".
What are CONIFERS?
400
Forests that have not been harvested for timber or otherwise changed by humans.
What are OLD-GROWTH FORESTS?
400
Why would a tree die if an animal scrapes off the bark all the way around the trunk?
The bark contains the PHLOEM which takes GLUCOSE from the leaves to the rest of the plant. Essentially, the tree would starve!
400
The functioning, live wood layers inside of the trunk.
What is SAPWOOD or XYLEM TISSUE?
500
The reproductive structures of conifers (and most gymnosperms).
What are CONES?
500
List two characteristics of trees that are Angiosperms.
1. broad, flat leaves 2. "hardwood" 3. deciduous
500
A tree harvesting method where approximately 10% of trees are left uncut to help re-seed the area.
What is the SEED-TREE method?
500
Explain why leave on a deciduous tree change colors and fall off in the autumn.
Reduced sunlight in autumn causes reduced production of chlorophyll in the leaves. As the chlorophyll (green pigment) fades, other pigments show through (red, orange, yellow). The sugar and nutrients in the leaves go into the stem and roots for storage. An abscission layer forms at the base of the petiole to sever the leaf from the branch. The leaf falls from the tree leaving a leaf scar behind.
500
A ring of growth cells between the bark and the inner wood tissue of a trunk.
What is the vascular CAMBIUM?