Plants are many celled organisms that have cell walls and make
their own food using the sun’s energy (photosynthesis). Most
plants live on land, and the resources they need are separated by
the air and soil. Sunlight, oxygen and carbon dioxide are in the
air, and minerals and water are in the soil.
-
Plants have roots that access water and nutrients in the
soil, and leaves that collect light and gases from the air.
The roots and leaves are connected by vascular tissue.
Classification of Plants
Nonvascular: have no
vascular tissue (mosses,
bryophytes, liverworts)
Vascular: have
vascular tissue
Seeds
Angiosperm:
flowering plants
Monocots: have 1
cotyledon (seed leaf),
parallel veins, flowers
in 3x, fibrous roots
Plants are many celled organisms that have cell walls and make
their own food using the sun’s energy (photosynthesis). Most
plants live on land, and the resources they need are separated by
the air and soil. Sunlight, oxygen and carbon dioxide are in the
air, and minerals and water are in the soil.
-
Plants have roots that access water and nutrients in the
soil, and leaves that collect light and gases from the air.
The roots and leaves are connected by vascular tissue.
Classification of Plants
Nonvascular: have no
vascular tissue (mosses,
bryophytes, liverworts)
No Seeds (ferns,
club mosses)
Gymnosperm: nonflowering
plants; conifers (pines, firs) –
make cones
Dicots: have 2
cotyledons, branched
veins, flowers in 4x or
5x, and taproots
Plants reproduce with sex cells and with spores. Their life cycle
has two stages:
a. Sporophyte: makes spores
b. Gametophyte: makes sex cells (gametes)
Vascular: have
vascular tissue
Seeds
Angiosperm:
flowering plants
Monocots: have 1
cotyledon (seed leaf),
parallel veins, flowers
in 3x, fibrous roots
No Seeds (ferns,
club mosses)
Gymnosperm: nonflowering
plants; conifers (pines, firs) –
make cones
Dicots: have 2
cotyledons, branched
veins, flowers in 4x or
5x, and taproots
Plants reproduce with sex cells and with spores. Their life cycle
has two stages:
c. Sporophyte: makes spores
d. Gametophyte: makes sex cells (gametes)
Winter Trees
Winter Trees
There are two ways to identify trees in the winter:
- Twigs
- Needles/Leaves
There are two ways to identify trees in the winter:
- Twigs
- Needles/Leaves
Evergreen Trees (gymnosperms) are woody plants that
produce seeds inside of cones.
- They are also known as conifers.
- They are adapted to living in much dryer
conditions; their needle-like leaves lose little water.
- They also retain their leaves throughout the year;
instead they gradually shed their needles
throughout the year (instead of losing them all in
the fall).
Evergreen Trees (gymnosperms) are woody plants that
produce seeds inside of cones.
- They are also known as conifers.
- They are adapted to living in much dryer
conditions; their needle-like leaves lose little water.
- They also retain their leaves throughout the year;
instead they gradually shed their needles
throughout the year (instead of losing them all in
the fall).
Directions for using the tree finder guides:
1. Select a typical leaf from the tree you wish to
identify. Avoid freaks.
2. Start at the top of page 5.
3. Proceed step by step, considering both choices
under each symbol.
4. When you have made your final choice, arriving at
the name of the leaf, compare your leaf with the
illustration and check the other features shown.
o Always check to see if the tree is in our
region
o There are more directions on pp 2-4 in the
actual guide
Directions for using the tree finder guides:
5. Select a typical leaf from the tree you wish to
identify. Avoid freaks.
6. Start at the top of page 5.
7. Proceed step by step, considering both choices
under each symbol.
8. When you have made your final choice, arriving at
the name of the leaf, compare your leaf with the
illustration and check the other features shown.
o Always check to see if the tree is in our
region
o There are more directions on pp 2-4 in the
actual guide