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1. Flowering seed plants

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stephanie Weathers

on 27 August 2013

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Transcript of 1. Flowering seed plants

Major Fields of Biology
The importance of Botany
Collecting and Observing Seed Plants 1.2
Some Common Flowering Seed Plants
Three major groups-
1. plants -
Botany- the study of plants
2. animals
zoology- the study of animals
3. people
human anatomy- the study of the physical structure (anatomy) and function (physiology)

- all the food eaten by man comes directly or indirectly through plants
- about 2/3 of food we eat comes directly from plants
- 1/3 from animals which eat plants
Parts of a Plant
The Composite Family
AKA: the sunflower family
The study of living things
- comes from Bio- meaning life
- ology- "science of" or "study of"

The Flowering Seed PLants
many drugs and antibiotics are made from plants
Flowers- observe and note color, type and arrangement of flower and flower parts
Leaves- note shape, size, arrangement and number of leaves
purpose of leaves
Stems- they give the plant structure
note the appearance and the way they feel

1. Woody plant
2. herbaceous
3. vines
Taproot system
a primary root grows straight down
Fibrous root system
has a small primary root with secondary roots growing in all directions
Angiosperms- flowering
the seeds are covered by a fruit
about 1/2 of the plants known to man are angiosperms
Ex: goldenrod, daisy, dandelions, and sunflowers
- head
- disk flowers
-ray flowers
Mint Family
Ex: peppermint and spearmint
oregano, basil, sage, lavender
- They have square stems and are often aromatic
Parsley Family
The Rose Family
- plants with showy flowers and thorny stems
- also includes: blackberries raspberries and strawberries
- apple, apricot, cherry, nectarine, peach, pear, and plum

- Complex design
- several poisonous plants such as poison hemlock and water hemlock
Pea Family
- one of the largest flowering plant families
- Ex: alfalfa, clover, vetch
The mustard family
Ex: cabbage, collards, kale, and turnips

Annuals, Biennials, and Perennials
Annual- produces new seeds in a single growing season
"short lived"
Biennials- live through two growing seasons in order to complete their life cycles
Ex: beets, cabbage, turnips, and carrots
- They need a second year to flower and produce a seed
- they spend their first year storing food in the large taproot

Perennials- live from year to year and bloom each season
The Lily Family
~Day Lilies only bloom for one day
~Aloe vera
The Nightshade Family
Ex: Tomatoes, Irish potatoes, peppers, and eggplants
- Tobacco is also included in this family and is considered deadly
The Cashew Family
-Cashew tree
- The three most common poisonous plants belong to this group (poison sumac, ivy, and oak)

Legumes, Bacteria, and Nitrogen Cycle
Legumes- are members of the pea family
Nitrogen cycle- the movement of nitrogen from the air, into the soil, and back into the air
Monocots and Dicots
Cotyledons- are used to store food
the majority of angiosperms are dicots
The Grass Family
Characteristics of grasses
also called graminoids
Cereal crops and forage grasses
Wheat, corn and rice are the three most important cereal crops
may be the most important group of plants on earth
Turf grasses
coverings for lawns, athletic fields, golf courses and playgrounds
Facet: Things to notice about grass
Broad leaf Trees- 1.4
Observing Broadleaf Trees
- they are perennials
- examine the shape of the leaves
Hardwoods- have dense, hard wood
Deciduous- they lose their leaves each fall
Evergreen trees- retain their leaves throughout the winter

Characteristics of Broadleaf Trees
- Crown- the top of the tree
Different types of trees will have different shaped crowns
- Flowers/blooms- not all trees have showy flowers
catkins- are tassel like clusters of tiny grayish or yellow/green flowers

American broadleaf trees
Maples- most popular trees in residential areas
Samara- fruit that has tiny wings to spread the seeds
Magnolias- the symbol of the south
Birches- have a thin smooth bark
Beech Family- (american cheastnut)
Elms- known for shade and can live for 200 years
Walnut- notice the compound leaf

Oaks- known for the lumber and acorns
Willows- long leaves, normally grow along rivers
Sycamores- Americas largest Deciduous tree
Hollies- have broad leaves with sharp edges
Ashes- members of the olive family and have a compound leaf system
Dogwoods- have flower-like petals surrounding a bud that are called bracts
Venation pattersn
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